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Showing posts from February, 2023

Scientists unveil plan to create biocomputers powered by human brain cells

https://www.eurekalert.org/news-releases/980084 "organoids are 3D increasing cell density 1,000-fold so neurons form many connections... energy efficient superior learners... 100bn neurons linked through over 1015 connection points, 10MM cells, 2,500TB storage... from skin samples... proof of concept: normal, flat brain cell culture learned video game Pong... replicating experiment with organoids would fulfill the basic definition of organoid intelligence... could help prevent and treat neurological conditions" Related: Perovskite nanocrystal computer components inspired by brain cells https://phys.org/news/2023-03-perovskite-nanocrystal-components-brain-cells.html

Towards a new antenna paradigm with waveform-selective metasurfaces

https://techxplore.com/news/2023-02-antenna-paradigm-waveform-selective-metasurfaces.html "selectively transmits incoming signals in response to pulse width, applied to antenna design... non-linear metasurfaces change response properties of antenna for waves of same frequency but with different waveforms... selectively receiving/transmitting surface and free-space waves... steering of a main beam, receiving signals under simultaneous incidence, and building a mutual communication system without needing a frequency change or an external power supply"

Ultrahigh areal output voltage monolithically integrated micro-supercapacitors for powering miniaturized electronics

https://phys.org/news/2023-02-ultrahigh-areal-output-voltage-monolithically.html "multi-step lithographic patterning, spray printing MXene microelectrodes, and 3D printing gel electrolyte, for mass production MIMSCs... HD micropatterning microelectrode and 3D printing precise electrolyte deposition... superior areal number density 28 cells cm-2 (400 cells on 3.5×4.1 cm2), record areal output voltage of 75.6 V cm-2, and systemic volumetric energy density 9.8 mWh cm-3... good capacitance retention of 92% after 4000 cycles at an extremely high output voltage of 162 V"

Strong microwave magnetic fields for more efficient plasmas

https://phys.org/news/2023-02-strong-microwave-magnetic-fields-efficient.html "longer stability... double quartz tube with solid material converted into plasma sitting within inner tube... extracting pure rare earth metals from their ores... cerium, lanthanum and neodymium, are becoming widely used in large-scale applications, including manufacture of rechargeable batteries for EVs... plasma of calcium and magnesium to release scandium and vanadium atoms from their oxide ores" Related: Researchers develop scalable and continuous surface modification process for magnesium alloy wires https://phys.org/news/2023-04-scalable-surface-modification-magnesium-alloy.html

Non-reciprocal acoustoelectric amplifiers for very high frequency sound waves

https://techxplore.com/news/2023-02-non-reciprocal-acoustoelectric-amplifiers-high-frequency.html "three-layer heterostructure comprised of a semiconducting film, a piezoelectric film and a silicon substrate... run continuously with high gain (i.e., ratio of output to input power) adding very little noise to an original signal and without consuming too much power... boost signal these GHz 1,000X only degrading signal to noise background by factor of 2... transmit signals going in wrong direction through amplifier 300,000X less than signals going through right way... dissipating heat generated" Related: Superconducting amplifiers deliver high performance at lower power consumption https://phys.org/news/2023-03-superconducting-amplifiers-high-power-consumption.html Smart films help to make loudspeakers lighter and more energy-efficient https://techxplore.com/news/2023-04-smart-loudspeakers-lighter-energy-efficient.html Research team's shape-changing smart speaker lets users

Efficient and scalable moisture-electric generators made from ionic hydrogel

https://techxplore.com/news/2023-02-efficient-scalable-moisture-electric-generators-ionic.html "efficient ionic hydrogel moisture-electric generator (IHMEG)... versatile, flexible, lightweight all-weather... chemical energy from atmospheric moisture to generate electricity directly without pollutants... 10% to 85% relative humidity and -24 to 60°C... unit 0.25 cm2 generate DC with constant open-circuit voltage ≈0.8V for >1,000 hours, high short-current density 0.24 mA cm−2, and power density of up to 35 µW cm−2... calculators, watchbands, ink screens, LEDs and electroplate metal nickel" Related: Researchers obtain anion ionic water-soluble two-photon initiator for 3D hydrogel construction https://phys.org/news/2023-03-anion-ionic-water-soluble-two-photon-3d.html New study shows how carbonated water can be used to tune properties of hydrogels for various uses https://phys.org/news/2023-04-carbonated-tune-properties-hydrogels.html Even as temperatures rise, this hydrogel mat

Diffractive optical networks use object shifts for performance boost

https://techxplore.com/news/2023-02-diffractive-optical-networks-shifts-boost.html "time-lapse scheme improves image classification accuracy of diffractive optical networks on complex input objects... >62% blind testing accuracy on all-optical classification of CIFAR-10 images... standalone diffractive network outperforms ensemble of >15 networks significantly reducing footprint of diffractive system while eliminating complexities of physical alignment and synchronization of several individual networks... compact, low-cost all-optical spatiotemporal information processing using passive materials"

Revealing the embedded phase in single-pixel quantum ghost imaging

https://phys.org/news/2023-02-revealing-embedded-phase-single-pixel-quantum.html "a single pixel detector... excellent resolution with a detector with essentially no resolution... certain masks naturally sensitive to phase component intelligently engineered to reveal full detailed phase structure along with conventional information that technique usually used for... extra layer of usefulness added to the way samples can be imaged in single pixel imaging with quantum light... revealing in 3D how thick or thin the objects are, even transparent ones... imaging of sensitive biological samples" Related: Researchers use SPAD detector to achieve 3D quantum ghost imaging https://phys.org/news/2023-08-spad-detector-3d-quantum-ghost.html

Motoflux concept proven to generate power utilizing only permanent magnets

https://irontradernews.com/new-motor-concept-proven-to-generate-power-utilizing-only-permanent-magnets/   "three-component design incorporating radial director that distorts magnetic lines of flux in armature. As flux lines seek to shorten and tighten, armature drawn forward to next closest pole tip of stator... torque output increase of 4 – 25 times over input...  consumes a fraction of the power required by current electric motor designs and therefore needs less energy storage removing most of the battery mass of all those EVs... highly scalable" Related: Megawatt electrical motor designed by MIT engineers could help electrify aviation https://voltsbase.com/entry/155453/megawatt-electrical-motor-designed-by-mit-engineers-could-help-electrify-aviation A symmetric-actuating linear piezoceramic ultrasonic motor capable of producing a scissoring effect https://techxplore.com/news/2023-07-symmetric-actuating-linear-piezoceramic-ultrasonic-motor.html Researchers realize continuou

Color-coding aids evaluation of new solar tech materials

https://phys.org/news/2023-02-color-coding-aids-solar-tech-materials.html "harness blue light more efficiently resulting in markedly higher power output... When there's more disorder, you have more energy migration, and that changes the color of the framework... blue photons of MOF indicate higher energy states, more disorder, and more energy being emitted... excited electrons have to move to some kind of interface where the electrons get separated and turned into energy. Sometimes that distance is very short, like 10 nanometers. But it can be 10 times longer or even more" Related: Metal−organic frameworks meet MXene: New opportunities for electrochemical application https://phys.org/news/2023-05-metalorganic-frameworks-mxene-opportunities-electrochemical.html Novel tin-based metal–organic frameworks for reducing carbon dioxide to formate https://phys.org/news/2023-05-tin-based-metalorganic-frameworks-carbon-dioxide.html Chemistry Alum's Breakthrough Research Holds Ke

Wafer-scale nanofabrication of telecom single-photon emitters in silicon

https://phys.org/news/2023-02-wafer-scale-nanofabrication-telecom-single-photon-emitters.html "focused ion beams from liquid metal alloy ion sources place single-photon emitters at desired positions on wafer, obtaining high creation yield and spectral quality... After cooling-down and warming-up cycles did not observe degradation of optical properties... implemented broad-beam implantation in commercial implanter through lithographically defined mask... create dozens of telecom single-photon emitters at predefined locations with spatial accuracy 50 nm. They emit O-band and exhibit stable operation"

Real-life 'quantum molycircuits' using exotic nanotubes

https://phys.org/news/2023-02-real-life-quantum-molycircuits-exotic-nanotubes.html "tubes grown clean and straight... small structure diameters down to 20nm... remain electrically transparent even in low temperature quantum computation which leave molybdenum disulfide intact... for practical reasons we used rather large nanotubes and nanoribbons... for temperatures below 0.1K in many quantum computing approaches, current passes through discrete quantum states enabling controllable charge, spin, or valley qubits in MoS2" Related: An innovative twist on quantum bits: Tubular nanomaterial of carbon makes ideal home for spinning quantum bits https://www.anl.gov/article/an-innovative-twist-on-quantum-bits-tubular-nanomaterial-of-carbon-makes-ideal-home-for-spinning Nanotubes as optical stopwatch for the detection of neurotransmitters https://phys.org/news/2023-04-nanotubes-optical-stopwatch-neurotransmitters.html Valley-transistor in two-dimensional materials: An ingredient for al

Testing the use of kombucha to make circuit boards

https://techxplore.com/news/2023-02-kombucha-circuit-boards.html "creation of second symbiotic culture of bacteria and yeast (SCOBY) similar to how sourdough made using starter... mass of pliable cellulose fiber which when dried becomes fabric-like mat capable of conducting electricity. For the new study, they wondered if the mats used as backing for circuit boards in functional, wearable devices... retain shape when heated to 200°C... printed circuits onto mats using conductive polymers via aerosol jet printer and 3D printer" Related: Green electronics: Circuit boards from renewable raw materials https://techxplore.com/news/2023-04-green-electronics-circuit-boards-renewable.html Yeast uses plastic waste oils to make high-value chemicals https://phys.org/news/2024-03-yeast-plastic-oils-high-chemicals.htm

Here’s why the first commercial spiral-welded wind turbine tower is a game-changer

https://electrek.co/2023/02/21/heres-why-the-first-commercial-spiral-welded-wind-turbine-tower-is-a-game-changer/ "installed 292 ft. tower under a GE 2.8-127 wind turbine... meters-wide steel plates curled into cylinder... one machine produces towers up to twice as tall and 10X faster... tapered towers with variable wall thickness... joining, rolling, fit-up, welding, and severing of tower section results in continuous production steel tower shells... lightest, lowest-cost, and most structurally optimized... 40-year lifetime... developing mobile factories at turbine sites" Related: First electron beam welding of wind turbine monopile achieves “dramatic results” https://envirotecmagazine.com/2023/05/12/first-electron-beam-welding-of-wind-turbine-monopile-achieves-dramatic-results/ The world’s tallest wooden wind turbine is nearly complete — and its creators say it makes wind power way more efficient  https://news.yahoo.com/world-tallest-wooden-wind-turbine-130000373.html  see

A special carbon molecule can function as multiple high-speed switches at once

https://www.u-tokyo.ac.jp/focus/en/press/z0508_00282.html "very short pulse of red laser light to use fullerene to switch path of incoming electron... witching speed 1 million times faster (3 to 6 orders magnitude) than computers with electronic transistors... unprecedented levels resolution in microscopic imaging devices... fullerene switch allows resolutions around 300 pm... a single molecule enables increase in complexity of system without increasing its physical size"

Etching method improves performance and lowers power consumption of circuits used in smartphones and data centers

https://techxplore.com/news/2023-02-etching-method-smartphone-circuit.html "combines selectivity of wet with controllability of dry etching... dry etching metal carbides uses floating wire-assisted vapor plasma of argon gas mixed with vapor sources of ammonium hydroxide-based mixtures at medium pressure... adding energy so additional floating wire enhances generation high-density plasma... treated TiAlC surface can be removed after surface modifications... Atmospheric and medium pressure plasma techniques miniaturize equipment size, fabrication cost, and energy consumption"

A method to rapidly align micro-light-emitting diodes (μLEDs) at a wafer-scale

https://techxplore.com/news/2023-02-method-rapidly-align-micro-light-emitting-diodes.html "large-scale fabrication μLED-based smart phone, tablet and virtual reality displays... reliably and rapidly align μLEDs on chips displays, enhancing image quality and resolution... irreversibly align 259,200 μLED chips with an accuracy of 100% and a transfer yield of 99.992% over 40 trials... μLED-based passive and active-matrix displays, by bonding a μLED-loaded interposer to backplanes based on a low-temperature polysilicon thin-film transistor... Si and more III-V devices through our 'FAST' method"

Simultaneous electricity generation and filtration of wastewater

https://techxplore.com/news/2023-02-simultaneous-electricity-generation-filtration-wastewater.html "sandwich-like membrane provide drinking water and generate continuous electricity from wastewater, seawater, and groundwater... filters water at bottom and conductive polymer generates electricity at top... controls direction of water flow. Water flowing perpendicularly to membrane generates direct current by movement of ions in horizontal direction... rejects >95% of contaminants of sizes <10 nm... microplastics and heavy metal removed, and continuous electricity can be generated for >3 h with only 10 µl water" Related: Bioengineered E. coli generates electricity from wastewater https://techxplore.com/news/2023-09-bioengineered-coli-generates-electricity-wastewater.html Generating small amounts of electricity by squeezing luffa sponges https://techxplore.com/news/2023-09-generating-small-amounts-electricity-luffa.html

New technology turns smartphones into RFID readers, saving costs and reducing waste

https://techxplore.com/news/2023-02-technology-smartphones-rfid-readers.html "combines chip size grain of sand costing few pennies to manufacture... integrated into product packaging and software update on phone, which becomes capable of identifying objects based on signals chip emits ... 1000X less power using signals generated by phone and re-directs back in format phone understands... first backscatter IC enable wireless communication and battery-less operation...  relies on common communication protocols: Bluetooth, WiFi and LTE... range of 1 m... adding battery 10's of m" Related: Backscattering protection in integrated photonics is impossible with existing technologies, says study https://phys.org/news/2023-04-backscattering-photonics-impossible-technologies.html

Study offers details on using electric fields to tune thermal properties of ferroelectric materials

https://phys.org/news/2023-02-electric-fields-tune-thermal-properties.html "strength of field, whether AC or DC, time and frequency play role in how electrical field alters material's thermal properties... PMN-PT used in sensors, actuators, ultrasound and memory storage... 2.5 mm-thick samples at room temperature"

A new chip for decoding data transmissions demonstrates record-breaking energy efficiency

https://techxplore.com/news/2023-02-chip-decoding-transmissions-record-breaking-energy.html "simpler and faster universal decoding algorithm statistical model improves information reliability... 10 to 100X better energy-efficient decoding... broken below the 1 picojoule-per-bit barrier for decoding... ORBGRAND (Ordered Reliability Bits GRAND), uses reliability information to sort data based on how likely each bit to be error... enable mobile devices with fewer chips... improve device performance and lengthen battery life... augmented and virtual reality and 5G networks" Related: Scientists discover diamond defects can secure data transmission and measure temperatures https://phys.org/news/2023-04-scientists-diamond-defects-transmission-temperatures.html

Researchers create nanoscale, ultra-fast, user-friendly microscopy

https://phys.org/news/2023-02-nanoscale-ultra-fast-user-friendly-microscopy.html "easy-to-use, time-resolved scanning tunneling measuring electron movement in superconductors at high temporal and spatial resolution... electrically control laser oscillation and delay time between pump and probe lights... constructed stable optical system... measure ultrafast charge carrier dynamics on gallium arsenide surfaces... correlate defects such as step edges and terraces to charge carrier dynamics... stabilized light spot position over 16 hours... ultrafast optical communication technologies and photocatalysis"

New strategy boosts performance of hydroisomerization

https://phys.org/news/2023-02-strategy-boosts-hydroisomerization.html "n-paraffin hydroisomerization enables efficient Pt-metal oxide interaction in bifunctional catalysis manufacture; one of most important industrial reactions... 0.3wt%PtCeOx/ZSM-22 showed high performance in n-paraffin hydroisomerization with enhanced turnover frequency, a high isomer selectivity (96%) at high n-paraffin conversion rate (91%), and an 87% i-paraffin yield, which was superior to the commercial Pt/ZSM-22 catalyst with traditional high Pt content (no less than 0.5wt% Pt)" Related: Bifunctional catalyst enables high-performance batteries for sustainable energy storage https://phys.org/news/2024-03-bifunctional-catalyst-enables-high-batteries.html

Nanoparticles self-assemble to harvest solar energy

https://phys.org/news/2023-02-nanoparticles-self-assemble-harvest-solar-energy.html "loosening strict requirements on periodicity of quasiperiodic nanoscale pattern significantly increases device's scalability... Thermal energy to electricity using thermoelectric materials... self-assembled by iron oxide... quasiperiodic nanophotonic structure achieves >94% absorbance, <0.2 suppressed thermal emissivity, and under natural solar illumination, absorber features, >80°C rise... flexible planar solar thermoelectric harvester 20 mV per square cm. powers 20 LEDa per square meter solar irradiation" Related: WVU lab’s game-changing high-performance semiconductor material could help slash heat emissions https://wvutoday.wvu.edu/stories/2023/03/14/wvu-lab-s-game-changing-high-performance-semiconductor-material-could-help-slash-heat-emissions German manufacturer achieves 80% overall efficiency with new PVT solar module https://www.pv-magazine.com/2023/03/24/german-manufactur

Synergistic interplay mechanism of dual active sites on bimetallic oxide for syngas conversion

https://phys.org/news/2023-02-synergistic-interplay-mechanism-dual-sites.html "Oxide-zeolite (OXZEO) bifunctional high-efficiency catalysis for efficient atomic level syngas conversion... identified the dual active sites with structure of -AlIV-OH···ZnIII-. Thus, they proposed the synergistic catalytic mechanism of the dual active sites on ZnAl2O4 catalyst for syngas conversion reaction" Related:   Researchers reveal conjugated dual size effect of core-shell bimetallic nanocatalysts https://phys.org/news/2023-02-reveal-conjugated-dual-size-effect.html Developing smart light traps inspired by photosynthesis https://phys.org/news/2023-03-smart-photosynthesis.html Synergistic iron carbide catalysts enable direct conversion of syngas into higher alcohols https://phys.org/news/2023-03-synergistic-iron-carbide-catalysts-enable.html Iron-based molecular switch improves reaction yield by modulating zeolite catalyst acidity https://phys.org/news/2023-09-iron-based-molecular-reaction-y

Development of a self-resonant smart energy harvester

https://techxplore.com/news/2023-02-self-resonant-smart-energy-harvester.html "autonomous resonance tuning (ART) piezoelectric energy harvester autonomously adjusts resonance over broad bandwidth more than 30 Hz according to surrounding environment converting absorbed vibration energy into electrical energy... achieve resonant frequency tuning within two seconds... was mounted on a vehicle... drove wireless positioning device without battery where vibration frequency continuously changed... wireless sensors,including the IOT" Related: Researchers print high-performance microcone-array flexible piezoelectric acoustic sensor https://phys.org/news/2023-03-high-performance-microcone-array-flexible-piezoelectric-acoustic.html Researchers achieve nonreciprocal frequency conversion with optical and mechanical modes https://phys.org/news/2023-03-nonreciprocal-frequency-conversion-optical-mechanical.html Engineers tap into good vibrations to power the Internet of Things https://uwater

New pumping strategy could slash energy costs of fluid transport by 22%

https://www.oist.jp/news-center/news/2023/2/17/new-pumping-strategy-could-slash-energy-costs-fluid-transport-22 "switching pumps on and off can cut energy costs by reducing turbulence in pipes... long cycles characterized by a short, intense pump that quickly accelerated the fluid flow, and then a long phase where the pump was switched off and the fluid slowed down, worked best for keeping the fluid in a laminar-like state for the longest amount of time... reduced energy costs by up to 22%... transport of fuels" Related:  GS Vortex Systems Launches Vortex Flow Amplifier, The New Standard in Pipe Flow Technology https://www.agritechtomorrow.com/news/2023/11/09/gs-vortex-systems-launches-vortex-flow-amplifier-the-new-standard-in-pipe-flow-technology/15047/

Harnessing plant molecules to harvest solar energy

https://techxplore.com/news/2023-02-harnessing-molecules-harvest-solar-energy.html "more efficient solar panels by harnessing plants' abilities to convert sunlight into chemical energy using biological molecules, like chlorophyll, that excel at absorbing sunlight... fluorophore transfers its light energy to metal nanoparticles, knocking off electrons and generating current... also applies to molecules that have high absorption of light such as chlorophyll, beta carotene, or lutein, which are inexpensive and easy to derive from plants... non-toxic, longer lasting and recyclable"

Novel architecture can reduce noise-induced jitters in digital technology

https://techxplore.com/news/2023-02-architecture-noise-induced-jitters-digital-technology.html "non-uniform oversampling phase-locked loop (OSPPL) to extend loop bandwidth and improve jitter performance of high-frequency digital signals...increase the loop bandwidth by 60 times providing low-jitter, 2.4 GHz fractional-N PLL using 32 kHz reference... 200 kHz loop bandwidth with 4.95 ps jitter... efficiently consumes only 3.8 mW power... can be integrated with CMOS technologies making it more economic for electronic devices"

Plantd Is making ultra-strong building panels out of grass

https://singularityhub.com/2023/02/15/this-startup-is-making-ultra-strong-building-panels-out-of-grass/ "fastest-growing grass grows 20 to 30 feet harvested multiple times per year... cellulose fiber broken down, reconstituted and engineered such that final product even stronger than wood... stronger, cheaper, lighter, and more moisture-resistant than wood for the same cost... strength enables building homes using fewer 2X4's,, creating fewer gaps so better building's energy efficiency... using nine times less land  than trees require... $10 million funding from former SpaceX engineers" Related: Knots Smaller Than Human Hair Make Materials Unusually Tough https://www.caltech.edu/about/news/knots-smaller-than-human-hair-make-materials-unusually-tough Sandcastle worm nests inspire new low-carbon building materials https://techxplore.com/news/2023-09-sandcastle-worm-low-carbon-materials.html

New discovery dramatically reduces time it takes to build molecules

https://phys.org/news/2023-02-discovery-molecules.html "synthesis of a complex alkaloid found in nature in three steps instead of the previous seven to twenty-xix... SYNTHIA Retrosynthesis Software uses logic based in graph theory providing database of pathways and formulas for millions of molecular structures... non-toxic production of medicines, agrichemicals or materials"

Cathode powders for high-performance lithium-ion batteries manufactured at unprecedented speed, low cost, and low energy use

https://news.mit.edu/2023/using-combustion-make-better-batteries-0216 "20 minutes of annealing at about 870 C plus 20 minutes of cooling down at room temperature... . Urea added 1% by weight, solving lithium-distribution problem as undesirable nanoparticles were largely gone... every component in integrated system already used in industry at large scale and high flow-through rate... technology to be commercialized and scaled up... combustion chamber to control temperature and heating rate so as to produce particles with desired morphology" Related: Study explores the viability of realizing stable high-voltage O-redox cathodes https://techxplore.com/news/2023-03-explores-viability-stable-high-voltage-o-redox.html Across the divide: Manufacturing better batteries https://techxplore.com/news/2023-03-batteries.html New strategy for cathode materials in lithium-chlorine battery https://techxplore.com/news/2023-04-strategy-cathode-materials-lithium-chlorine-battery.html A scalable

This 'Harry Potter' light sensor achieves magically high efficiency of 200%

https://techxplore.com/news/2023-02-harry-potter-sensor-magically-high.html "photodiode quantum efficiency counts number of photons the diode converts into electrons... Illuminating solar cells with green light enhances quantum efficiency... every infrared photon converted in an electron, gets company from a bonus electron... detect minute changes in amount of infrared light reflected back into diode an indication of changes in blood pressure in person's veins, indicating heart rate... pointed at the person's chest measures respiration rate from light movements in the thorax" Related: Quantum sensors paving the way for new technologies https://phys.org/news/2023-08-quantum-sensors-paving-technologies.html

Team develops new way to extract thermal energy from waste heat sources and reuse it via pressure control

https://techxplore.com/news/2023-02-team-thermal-energy-sources-reuse.html "barocaloric thermal battery cycle: (1) thermal charging upon pressurization, (2) storage with pressure, and (3) thermal discharging upon depressurization... ammonium thiocyanate... Discharge heat 43 J g-1 or temperature rise of 15 K... 11X greater than mechanical energy input... crystal structural phase transition from monoclinic to orthorhombic phase at 363 K... low-temperature industrial waste heat harvesting and reuse, solid-state refrigeration heat transfer systems, smart grids, and residential heat management" Related: Novel model helps analyze phase transition heat transfer in heat pipes https://techxplore.com/news/2023-08-phase-transition-pipes.html Heata is transforming the UK's household energy costs with waste heat reuse https://tech.eu/2023/10/24/heata-is-transforming-the-uks-household-energy-costs-with-waste-heat-reuse/ Framo Unveils Groundbreaking Turbine, Revolutionizing Cost and Ene

Tapered optical fiber addresses challenge posed by Brillouin scattering

https://phys.org/news/2023-02-tapered-optical-fiber-posed-brillouin.html "micron-sized waist optical fiber... couple propagating optical waves, long-lived acoustic waves with strong optical-acoustic interactions... temporary information stored in slowly propagating acoustic waves long enough for second light pulse read info... multi-mode glass fiber with cladding removed... heating fiber center and simultaneously applying mechanical tension to stretch the fiber at both ends... strongest Brillouin coupling strengths... light storage, radio-frequency photonics filtering, optical delay lines" Related: Fiber optics shed light on solid-state physics phenomena https://phys.org/news/2023-04-fiber-optics-solid-state-physics-phenomena.html World's first standard cladding diameter 19-core optical fiber with record transmission capacity https://techxplore.com/news/2023-05-world-standard-cladding-diameter-core.html

Electronic metadevices break barriers to ultra-fast communications

https://techxplore.com/news/2023-02-electronic-metadevices-barriers-ultra-fast-communications.html "new class of terahertz devices... etching metastructure patterned contacts at sub-wavelength distances onto gallium nitride and indium gallium nitride semiconductor... allow control of electrical fields inside device significantly boosting performance without relying on aggressive downscaling... can reach 20 THz. and support over 20 V. enabling transmission and modulation of THz signals with much greater power and frequency... compatible with existing manufacturing... data transmission 100 Gbps at THz frequencies"

An extension of the memristive system: From tunable conductance to reconfigurable photoresponse

https://phys.org/news/2023-02-extension-memristive-tunable-reconfigurable-photoresponse.html "non-volatile photo-memristor... reconfigurable responsivity modulated by charge and/or photon flux through it and stored in device... computationally complete logic with photoresponse-stateful operations... same photo-memristor is both logic gate and memory... photoresponse as physical state variable instead of light, voltage and memresistance... two-terminal device based on ion migration, not limited by thickness... can increase film thickness to absorb more photons and large short-circuit photocurrent"

Researchers find thermal limits of advanced nanomaterials

https://phys.org/news/2023-02-thermal-limits-advanced-nanomaterials.html "thermally conducting Boron nitride nanotubes (BNNTs) stronger and more resistant to high temperatures than carbon nanotubes... conduct heat, insulate electrical current and block radiation... stable at up to 1800°C in inert environment in which manufactured.... can withstand temperatures at 2200°C for short periods... Anything that gets hot, like a turbine or engine, might use them to function in high-temperature environment... medicine delivery systems, high-performance electronics, space travel"

Towards single atom computing via high harmonic generation

https://techxplore.com/news/2023-02-atom-high-harmonic-generation.html "atoms computing reservoir where all input-output processing is optical... neuromorphic non-linear computer mimic brain... input information encoded directly into,and output also in form of light... calculation then determined by filters that light output passed through... performed better when input light designed to induce higher degree of non-linearity in the system... minimal system capable of computing exists on level of single atom and computation can be performed purely with optical processes" Related: Researchers develop a redox-based transistor as a reservoir system for neuromorphic computing https://techxplore.com/news/2023-07-redox-based-transistor-reservoir-neuromorphic.html

Add-on device makes home furnaces cleaner, safer and longer-lasting

https://techxplore.com/news/2023-02-add-on-device-home-furnaces-cleaner.html "acidic gas reduction (ZGR) removes > 99.9% of acidic gases, soot and other emissions to produce ultraclean natural gas furnace, water heaters, boilers... cheaper since eliminates corrosion-resistant stainless steel... 400-hour reliability and durability test... AGR unit could be removed by homeowner or technician for regeneration and recycling" Related: Using green energy for electrochemical corrosion protection https://phys.org/news/2023-04-green-energy-electrochemical-corrosion.html

Two-dimensional oxides open door for high-speed electronics

https://phys.org/news/2023-02-two-dimensional-oxides-door-high-speed-electronics.html "confinement hetroepitaxy (CHet) world's thinnest oxides, 2D... layers closer with ultrathin barrier between conducting layers... use in 2D/3D stacked heterostructures... operate GHz and THz frequencies... heating silicon carbide causing thin layer of silicon to evaporate leaving behind carbon that rearranges to form protective layer of graphene... can be made into insulators via oxidation...allows to stabilize 3D materials like gallium oxide in 2D form... graphene control allows 2D/3D heterostructure control" Related: Integrating dimensions to get more out of Moore's Law and advance electronics https://techxplore.com/news/2024-01-dimensions-law-advance-electronics.html

Researchers discover new material to 'trap and store volatile gases

https://phys.org/news/2023-02-material-volatile-gases.html "hydrogen and natural gas and medicinal (e.g., oxygen and nitric oxide) gases... have empty space, but they are not interconnected by pores... less energy intensive and safer... sorbent expands when exposed to gases with very little structural rearrangement; captures increasingly large quantities of gas as pressure increased... reversible and recyclable" Related: Math allows hydrogen blend in natural gas pipelines https://techxplore.com/news/2023-08-math-hydrogen-blend-natural-gas.html MAN Industries achieves milestone with certified safe pipes for hydrogen transport https://www.manufacturingtodayindia.com/sectors/man-industries-achieves-milestone-with-certified-safe-pipes-for-hydrogen-transport AI helps whittle down candidates for hydrogen carriers in liquid form from billions to about 40 https://techxplore.com/news/2024-01-ai-whittle-candidates-hydrogen-carriers.html

Toward practical quantum optics: Multiphoton qubits from LNOI

https://phys.org/news/2023-02-quantum-optics-multiphoton-qubits-lnoi.html "generate N-photon state deterministically; photon number doubling happens with 100% efficiency, keeping spectrum unchanged, with unlimited numbers of photons... using lithium-niobate-on-insulator (LNOI) platform providing ultrastrong χ(2) nonlinear interaction... PDU is universal for generation of N-qubit states, for examples, on-chip designs for N-photon Fock state, cluster state, and GHZ state... DPDC with 107 Q-factor microring, within current limits of fabrication and experimentation"

Scientists present a new method for imaging individual electrons

https://phys.org/news/2023-02-scientists-method-imaging-individual-electrons.html "rotating magnetic field in vicinity of nitrogen-vacancy center; atom-sized defect in special synthetic diamond used as quantum sensors which can pinpoint single molecule five cubic nm... its quantum nature differentiates whether single electron is present, or more, measuring location of individual electron with incredible accuracy... better understand molecular structure, function and dynamics... precise nanoimaging revolutionize development of pharmaceuticals and characterization of quantum materials" Related: Fast magnetic imaging with diamond-based quantum sensor technology https://phys.org/news/2023-06-fast-magnetic-imaging-diamond-based-quantum.html 'Doughnut' beams help physicists see incredibly small objects https://phys.org/news/2023-12-doughnut-physicists-incredibly-small.html

Researchers develop high-efficiency mid- and long-wave optical parametric oscillator pump source

https://phys.org/news/2023-02-high-efficiency-mid-long-wave-optical-parametric.html "lasers widely applied in Lidar... Ho:YAG achieves high-efficiency 2.1 μm laser output by scanning and optimizing pump laser wavelength... tunable Tm:YLF laser is pump source... continuous tunability ranges from 1906.04 to 1908.83 nm, corresponding to a linewidth of less than 0.41 nm... light-to-light conversion efficiency 59.12%, slope efficiency 68.26% under center wavelength of pump source of 1907.36 nm... high-efficiency tunable long-wave UV type I phase matching with tuning range 8.02–9.15 μm" Related: Engineers develop first-of-its-kind integrated optical isolator https://phys.org/news/2023-06-first-of-its-kind-optical-isolator.html

The 'flip-flop' qubit: Realization of a new quantum bit in silicon controlled by electric signals

https://phys.org/news/2023-02-flip-flop-qubit-quantum-bit-silicon.html "using spin of electron as well as nuclear spin of single phosphorus atom in silicon could be used as qubits... defining the qubit as the combined up-down / down-up orientation of the electron and the nucleus of the atom would permit controlling such a qubit using the electric fields alone, without requiring oscillating magnetic fields for operation... resembles the type of electrical signal normally routed within conventional silicon computer chips, as we use every day in our computers and smartphones" Related: Quantum materials: Electron spin measured for the first time https://phys.org/news/2023-06-quantum-materials-electron.html

Chiral phonons create spin current without needing magnetic materials

https://phys.org/news/2023-02-chiral-phonons-current-magnetic-materials.html "waste heat rather than electric signals to generate spin current information more energy efficient... room temperature without needing magnetic materials... direct angular momentum and create and control spin current... 2D layered hybrid organic-inorganic perovskite by using a thermal gradient to introduce heat to the system... computational memory to power grids" Related: Controlling the electro-optic response of a perovskite coupled to a phonon-resonant cavity https://phys.org/news/2023-07-electro-optic-response-perovskite-coupled-phonon-resonant.html Study leverages chiral phonons for transformative quantum effect https://phys.org/news/2023-11-leverages-chiral-phonons-quantum-effect.html

Mechanical engineering meets electromagnetics to enable future technology

https://techxplore.com/news/2023-02-mechanical-electromagnetics-enable-future-technology.html "reconfigurable compliant mechanism-enabled patch antenna... bend repeatedly in certain direction which in turn changes its operating frequencies by configuring its mechanical properties—without use of hinges or bearings... robust, long term reliability and high-power handling capability... 3D printed circular, iris-shaped patch antenna using commercial electromagnetic simulation software... can be scaled to the integrated circuit level for higher frequencies or increased in size for lower frequency applications"

Scientists realize faster method for quantum key distribution

https://phys.org/news/2023-02-scientists-faster-method-quantum-key.html "mode-pairing quantum key distribution (MP-QKD)... three orders magnitude improvement in speed of QKD over traditional measurement-device-independent QKD (MDI-QKD) when used in metropolitan and intercity networks... also performs faster on longer distances 300 to 400 km... achieved with off-the-shelf lasers, thus is a ready-to-implement technology. The scientists expect the new technology to be widely used in future intercity quantum networks"

Researchers develop novel terahertz phase modulator based on NGO single crystals

https://phys.org/news/2023-02-terahertz-phase-modulator-based-ngo.html "When temperature of NdGaO3 (NGO) single crystalswas increased from 100 to 400 K, terahertz phase shift reaches ~94°... phase shifts for each crystal orientation showed linear proportional... achieved active modulation of terahertz phase: laser illumination could efficiently induce a noticeable terahertz shift. With  light fluenc fluence 20 J/cm2,  terahertz shift ~78° achieved with good manipulation stability. By changing light fluence, multi-state terahertz phase shift achieved"

Compact, non-mechanical 3D lidar system could make autonomous driving safer

https://techxplore.com/news/2023-02-compact-non-mechanical-3d-lidar-autonomous.html "beam-scanning lidar systems combined with flash lidar 3D... nonmechanical system fits in palm of hand... measures distance of poorly reflective objects such as black metallic cars and automatically tracks motion... dually modulated photonic-crystal laser (DM-PCSEL)light source enable an on-chip all-solid-state 3D lidar system... flash source that can illuminate wide 30°×30° field of view and beam-scanning source that provides spot illumination with 100 narrow laser beams"

Quantum data conversion offers a path to scale up quantum technology architectures

https://phys.org/news/2023-02-quantum-conversion-path-scale-technology.html "integrates best features of networks for more robustness and efficiency... converter preserves fragile encoded quantum signal while changing basis upon which written... hybrid-entangled state between discrete-variable and continuous-variable qubit... single-photon hybrid entanglement made to interfere with input qubit, followed by boosted single-photon detection... output qubit characterized with quantum tomography process to calculate fidelity between input and output qubit"

Highly transparent electrodes for deep-UV light emitting diode applications

https://phys.org/news/2023-01-highly-transparent-electrodes-deep-uv-emitting.html "films produced showed low resistivity and superior transmittance of DUV light... excellent conductivity and transparency... pulsed laser deposition...could be formed on aluminum nitride (AlN) substrates by using crystalline seed layer of tin oxide. Aluminum nitride is key material in deep UV LEDs, next generation light sources for sterilization processes and microchip manufacture" Related: Metasurface enters laser fiber cavity for spatiotemporal mode control https://phys.org/news/2023-02-metasurface-laser-fiber-cavity-spatiotemporal.html Exploiting dark autoionizing states for enhancing extreme ultraviolet lasers https://phys.org/news/2023-03-exploiting-dark-autoionizing-states-extreme.html Acoustic emission monitoring technique, an essential way to analyze pulsed laser processing https://techxplore.com/news/2023-07-photovoltaic-device-poised-global-impact.html Researchers develop flexible, mul

Researchers use water treatment method to capture acids from agricultural waste

https://phys.org/news/2023-02-treatment-method-capture-acids-agricultural.html "ion-exchange membrane wafer improves electrodeionizaton's capture of p-coumaric acid from liquid mixtures using less energy... imidazolium ionomer, a polymer, and glued imidazolium membrane on top of resin wafer.,  reducing membrane need by 30%... also reduced interfacial resistance between membrane and wafer leading to increased rate of capturing p-coumaric acid, allowing smaller unit... 7X increased p-courmaric acid capture using 70% less energy"

Quantum tunneling to boost memory consolidation in AI

https://techxplore.com/news/2023-02-quantum-tunneling-boost-memory-ai.html "energy-efficient way to consolidate long-term memories on tiny chip... AI mimics synapse to continuously learn new tasks without forgetting how to perform old tasks... two coupled reservoirs of electrons where electrons use Fowler-Nordheim (FN) quantum tunneling to jump through a triangular barrier, and in the process, change shape of barrier.... prototype array of 128 of these hourglass devices on a chip less than a millimeter in size... long-term and short-term memory on the same device" Related: Long-distance quantum teleportation enabled by multiplexed quantum memories https://phys.org/news/2023-04-long-distance-quantum-teleportation-enabled-multiplexed.html Study offers new insights into understanding and controlling tunneling dynamics in complex molecules https://phys.org/news/2024-01-insights-tunneling-dynamics-complex-molecules.html

A liquid laser that is robust in air and tunable by wind

https://phys.org/news/2023-02-liquid-laser-robust-air-tunable.html "work as flexible, long-lasting, and pneumatically tunable lasers that can be used in ambient conditions... copies microscopic bumps in lotus leaf enabling liquid droplets of near-perfect spheres which act like lasers... ionic liquid called 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) mixed with dye that allows it to become a laser... evaporates very slowly and has relatively large surface tension... quartz substrate is coated with tiny fluorinated silica nanoparticles to make the surface repel liquids"

New study opens the door to ultrafast 2D devices that use nonequilibrium exciton superdiffusion

https://phys.org/news/2023-02-door-ultrafast-2d-devices-nonequilibrium.html "ultrafast motion of nonequilibrium exciton in monolayers WSe2, MoWSe2, and MoSe2, immediately after excited with femtosecond laser with pump-probe microscope...  excitons travel 200 nm within 1 ps... superdiffusion is when exciton diffuses much faster than expected at early time... expected to break the traditional limitation of photovoltaic efficiency, or could be used for ultrafast electronic devices due to its nature of ultrashort time scales of up to 102—103 cm2 s−1"

New photodiode with extremely low excess noise for optical communication and long range LIDAR

https://phys.org/news/2023-02-photodiode-extremely-excess-noise-optical.html "transform single electron input to cascade of electrons at output... high multiplication factor with very little added noise... measured noise factor at multiplication factor of 20 is at least three times lower than commercial avalanche photodiode... GaAsSb absorption region has excellent detection efficiency at infrared wavelengths (up to 1,700 nm)... excess noise factor of 2.48 extremely low noise APD... generate step changes in optical communication and long range LIDAR"

Atom-thin walls could smash size, memory barriers in next-gen devices

https://phys.org/news/2023-02-atom-thin-walls-size-memory-barriers.html "passage of electrical spikes sent via oxygen-deprived movable walls depend on which signals have passed through before, making them adaptable and energy efficient... retain data even when devices turn off... thin-sliced bismuth ferrite... ferroelectricity, the polarization of its positive and negative electric charges flipped by applying just a pinch of voltage... links ferroelectricity with electrochemistry... motion of oxygen vacancies basically controls the motion of these domain walls" Related: Discovery of ferroelectricity in an elementary substance https://phys.org/news/2023-04-discovery-ferroelectricity-elementary-substance.html

Creating 3D objects with sound

https://techxplore.com/news/2023-02-3d.html "multiple acoustic shaped high-frequency ultrasound holograms generate pressure fields with which solid particles, glass or gel (or hydrogel) beads and biological cells printed... 3D object from smaller building blocks in single step... acoustic holograms—3D-printed plates, encode specific sound field which assemble materials into 2D patterns... cell cultures and tissues in 3D... gentle enough for biological cells... can travel deep into tissue... remotely manipulate and push cells without harm" Related: Lensless complex amplitude demodulation based on deep learning in holographic data storage https://phys.org/news/2023-04-lensless-complex-amplitude-demodulation-based.html Technology advance paves way to more realistic 3D holograms for virtual reality and more https://phys.org/news/2023-04-technology-advance-paves-realistic-3d.html Researchers have developed an incredible new method of producing realistic holograms https://thedebrie

Quantum bits that directly transfer between quantum computer microchips with record-breaking speed and accuracy

https://phys.org/news/2023-02-quantum.html "fast and coherent ion transfer using quantum matter links... transporting the qubits with a 99.999993% success rate and a connection rate of 2424/s... potential scale-up by connecting hundreds or thousands of quantum computing microchips... large-scale quantum computing, medicine development, fertilizer production, aeronautics and finance"

Gates invests $20 million in Blue Frontier: First all-electric HVAC energy-storing, grid-interactive air conditioner; utilizes NREL tech

https://www.nrel.gov/news/program/2023/leveraging-nrel-all-electric-hvac-technology-blue-frontier-earns-20-million-development-boost.html "desiccant-enhanced evaporative air conditioner... two NREL innovations (1) cooling process using indirect evaporative air conditioning provides refrigeration, (2) concentrated salt solution (desiccant) controls humidity, combined into single conditioner system that cools and dehumidifies building spaces using minimal electricity to run fans and pumps... Storing desiccant enables up to 12 hours of low power conditioner operation when electric rates are high... inexpensive and saves up to 80% energy costs" Related: Ice-based air conditioning: Saving energy and keeping us cool https://innovationorigins.com/en/ice-based-air-conditioning-saving-energy-and-keeping-us-cool/ New Air-Conditioning Technology Could Be the Future of Cool https://www.scientificamerican.com/article/new-air-conditioning-technology-could-be-the-future-of-cool/ New researc

Illinois Tech professor demonstrates novel control method in aircraft with no tail

https://www.iit.edu/news/illinois-tech-professor-demonstrates-novel-control-method-aircraft-no-tail "avoid radar detection, more fuel-efficient... smooth and sleek... jets of air blown onto different surfaces of aircraft body, corresponding to which direction aircraft moving... less drag... allow maneuvers including very fast turns and ability to fly at angles that would cause conventional controls to become ineffective... patent-pending Coanda valve" Related: Otto Celera 800, Otto Celera 500L - The World's Most Efficient Aircraft Innovation https://aviapages.com/buzz/thread/otto-celera-800-otto-celera-500l-the-worlds-most-efficient-aircraft-innovation-1707387468.638495/

Microscopy images could lead to new ways to control excitons for quantum computing

https://phys.org/news/2023-02-microscopy-images-ways-excitons-quantum.html "localize excitons on specific lattice sites by stacking these 2D materials... stacking layers of tungsten disulfide (WS2) and tungsten diselenide (WSe2)... small mismatch in spacing of atoms causes moiré superlattice... large atomic reconstructions take place in stacked materials, which modulate electronic structure to form periodic array of traps where excitons become localized... direct relationship between structural changes and localization of excitons enables new approach to optoelectronic materials" Related: Researchers make a new type of quantum material with a dramatic distortion pattern https://phys.org/news/2023-02-quantum-material-distortion-pattern.html Breakthrough in tin-vacancy centers for quantum network applications https://phys.org/news/2023-02-breakthrough-tin-vacancy-centers-quantum-network.html Moiré superlattices show superpower in photonics and optoelectronics https://phys.org/n

Distortion-free structured light

https://phys.org/news/2023-02-distortion-free.html "possible to find distortion-free forms of light that come out of a noisy channel exactly the same as they were put in... doesn't matter how long this medium is, nor how strong the perturbation... transporting classical and quantum light through optical fiber, underwater channels, living tissue, and other highly aberrated systems... imaging and communication"

AI lights the way for futuristic electronics, from bendy TVs to lightweight solar cells

https://techxplore.com/news/2023-02-ai-futuristic-electronics-bendy-tvs.html "AI algorithm create new molecules for electronics, is able to rapidly design millions of previously undiscovered molecules by building them atom by atom on a computer... search for molecules that can absorb and emit light of a certain color and are also easy to synthesize... flexible TVs and screens cheaper, more flexible, lightweight and with higher color brilliance" Related: Thin-film transistor strategy to enhance flexible display panel performance https://techxplore.com/news/2023-02-thin-film-transistor-strategy-flexible-display.html Using a solidified liquid metal to build 3D flexible electronics https://techxplore.com/news/2023-02-solidified-liquid-metal-3d-flexible.html 'Metasurface' technology: researchers pave the way for flatter and more energy-efficient screens https://newsroom.unsw.edu.au/news/science-tech/metasurface-technology-researchers-pave-way-flatter-and-more-energy-effici

Tech that turns household surfaces into touch sensors is a touch closer to application

https://techxplore.com/news/2023-02-tech-household-surfaces-sensors-closer.html "HumTouch detects current running from fingertips to any partially conductive surface and locates where was touched... speeds up calibration for new users... improves accuracy... wiring electrodes to edges of cloth, wood or stone surface... based on AC hum noise... new user touch paper once, have measurement mixed with preexisting calibration data from other users, and enjoy accurate location of subsequent touches up to accuracy of less than centimeter; less than width of finger"

Upconversion of infrared photons enables rapid organic synthesis under sunlight

https://phys.org/news/2023-02-upconversion-infrared-photons-enables-rapid.html "zinc-doped CuInSe2 nanocrystals as a low-cost and environmentally-benign sensitizer for near-infrared-to-visible upconversion, which achieved external quantum efficiency of 16.7% for this spectral range... broadband light capturing of the near-infrared nanocrystals, these reactions were remarkably rapid under indoor sunlight, enabling, for example, polymerization of acrylates within just 30 seconds... boost the performance of photovoltaics, photoredox-catalysis and phototheranostics"

Polymers with a metal backbone

https://phys.org/news/2023-02-polymers-metal-backbone.html "chalice-shaped molecule (calixarene) with four binding sites as scaffold for metal (nickel) polymer... attached four poly(aminopyridine) chains to calixarenes, which bundles the four chains in parallel alignment... conductive, thermally stable, and has interesting optoelectronic properties... strong length-dependent light absorption with narrow band gaps, which is promising for optoelectronic devices and semiconductors" Related: Fluid mixing enables scalable manufacturing of soft polymer structures https://phys.org/news/2023-03-fluid-enables-scalable-soft-polymer.html Scientists fabricate composites that combine high strength and bioactivity inspired by the cortical bone https://phys.org/news/2024-04-scientists-fabricate-composites-combine-high.html

Newly proposed strategy in chemistry sheds light on better applications in energy devices

https://phys.org/news/2023-02-newly-strategy-chemistry-applications-energy.html "zwitterions-polyoxometalates optimize fuel cell,s batteries and supercapacitors... improve proton conductivity, cycling stability and capacitance performance... zwitterion dubbed MIMPS as an additive  improve solubility and dissociation of polyoxometalates in gel electrolytes... proton conductivity of polyoxometalates-based electrolytes improved 3X... increase the target ion transport, improve the counter electrode stability, and form more conductive solid electrolyte interfaces" Related: Deep-learning tool boosts X-ray imaging resolution and hydrogen fuel cell performance https://techxplore.com/news/2023-02-deep-learning-tool-boosts-x-ray-imaging.html Researchers describe promising method to optimize and scale up the production of fuel cell input https://phys.org/news/2023-03-method-optimize-scale-production-fuel.html Researchers synthesize a highly graphitized carbon support to improve the life

Scientists couple terahertz radiation with spin waves

https://phys.org/news/2023-01-scientists-couple-terahertz.html "efficient coupling of terahertz waves with much shorter wavelength spin waves... two metal films a few nanometers thick, with a ferromagnetic layer sandwiched in between is combination of materials precisely tuned to "translate" signals from the world of light into the world of spins.... electron spin is in motion but no current flow is involved, so there are no heat losses... development of novel, energy-saving spin-based technologies for data processing"

Scientists report on a quasiparticle that can transfer heat under electrical control

https://phys.org/news/2023-02-scientists-quasiparticle-electrical.html "quasiparticle ferron carries waves of polarization and heat at the same timemight increase that change in thermal conductivity by up to 15%... application of an electrical field to the material produced a 2% difference between maximum and minimum conductivity... heat switches in everyday applications, like collection of solar power... heat-transferring property induced by electric field through piezoelectric strain: lattice contracts or stretches when voltage applied changing thermal conductivity" Related: Beyond on and off: Engineers create continuously tunable thermal regulators https://techxplore.com/news/2023-06-tunable-thermal.html

How do you create buildings that can withstand the most extreme stress loads?

https://techxplore.com/news/2023-02-extreme-stress.html "lighter, thin-walled solutions that can withstand a great deal of deformation without cracking and collapsing... developed accurate computer simulations which simulate how structures behave when they are bent, stretched or otherwise deformed... carried out 110 tests, of which 82 were explosion experiments. High-speed cameras filming 37,000 frames per second have captured the details as the steel plates are damaged" Related: Minute structural sensor borrows principle from a vibrating guitar string https://techxplore.com/news/2023-02-minute-sensor-principle-vibrating-guitar.html Scientists make breakthrough in research that could change the way our homes are constructed: ‘A significant result’ https://news.yahoo.com/scientists-breakthrough-research-could-change-210000107.html

Expanding extreme high-speed laser material deposition into the third dimension

https://techxplore.com/news/2023-02-extreme-high-speed-laser-material-deposition.html "transferred two-dimensional Extreme High-speed Laser Material Deposition EHLA to a modified five-axis CNC system for the additive manufacturing of complex components... 3D print difficult-to-weld materials such as tool steels, titanium, aluminum and nickel-based alloys... upgrading basic components with a functional layer... Worn or defective components can be made fully functional again after local cladding using Laser Material Deposition and, thus, no longer have to be scrapped"

Revolutionary Solar Panel Made from Recycled Food Waste Generates Energy Without Sunlight

https://www.shifted.in/2023/02/revolutionary-solar-panel-made-from.html?m=1 "harvests UV light from sun, which can penetrate dense cloud cover... luminescent particles from fruit and vegetable... flexibility of the material, which can even be applied to fabric for clothing... could help reduce people's exposure to radiation (can be used over windows), and lower costs... first building installation of AuREUS will be at a small medical clinic in Jomalig, Philippines, that often experiences power outages during storms" Related: Solarge Debuts Lightweight Fully Recyclable Solar Panels https://cleantechnica.com/2023/04/19/solarge-debuts-lightweight-fully-recyclable-solar-panels/ Utility-scale solar installation goes automated https://pv-magazine-usa.com/2023/05/11/utility-scale-solar-installation-goes-automated/

Near-zero-dispersion soliton and broadband modulational instability Kerr microcombs in anomalous dispersion

https://phys.org/news/2023-02-near-zero-dispersion-soliton-broadband-modulational-instability.html "microcombs are microresonators based frequency combs... pulsed pumping scheme to drive this near-zero dispersion F-P microresonator. Pulsed pumping scheme can effectively reduce the demand for average pumping power and alleviate the intracavity thermal effect... near-zero-dispersion soliton state has relatively low phase-noise feature and self-organized structures, which provides unique capabilities in the applications of optical computing, light sensing, communication and spectroscopy" Related: Using chaotic inputs to improve microcomb-based parallel ranging https://phys.org/news/2023-07-chaotic-microcomb-based-parallel-ranging.html New method makes microcombs 10 times more efficient https://phys.org/news/2023-09-method-microcombs-efficient.html Spatiotemporal mode-locking and dissipative solitons in multimode fiber lasers https://phys.org/news/2023-11-spatiotemporal-mode-lock

Interaction-free, single-pixel quantum imaging with undetected photons

https://phys.org/news/2023-02-interaction-free-single-pixel-quantum-imaging-undetected.html "harnessed wave-particle duality of single photons in a intensified CCD camera to perform interaction-free, single-pixel quantum imaging with undetected photons... induced coherence... reconstructed image of object via sequence of signal-photon counts detected by visible single-photon detector without spatial resolution... image sensitive biological specimen and nanomaterials" Related: Perovskite single-pixel detector for efficient extraction of meta-images in complex environments https://phys.org/news/2024-02-perovskite-pixel-detector-efficient-meta.html

Researchers uncover a new method for generating spinning thermal radiation

https://phys.org/news/2023-02-uncover-method-generating-thermal.html "array of F-shaped metasurface generate predominantly left-handed circularly polarized thermal radiation in all directions, resulting in non-vanishing optical helicity for first time... reached 39% of limit in optical helicity...  effective control over thermal radiation... wide-angle, narrow-band circular-polarized mid-infrared light source for optical gas sensing and infrared imaging... passive infrared beacons in outdoor environments for use in remote sensing... thermal imaging and communication" Related: Researchers: We've created a new lens that could take thermal cameras out of spy films and put them in your back pocket https://techxplore.com/news/2023-06-weve-lens-thermal-cameras-spy.html