Today's Tech News: Notable or Not?

https://techxplore.com/news/2023-01-hydrogel-actuator-soft-robots-rough.html "adaptive deformation... multi-dimensional off-road locomotion on natural terrains...  hydrogel diverse biomimetic forms due to self-deformation and soft-tissue-like... inspired by inchworms... photothermal hydrogel layer containing Fe3O4 nanoparticles grown on surface of isotropic poly(N-isopropyl acrylamide) (PNIPAm) sponge, forming anisotropic bilayer structure via interfacial diffusion polymerization... could crawl on the 2D rough substrate or overstep complex sandy terrains" Related: Squid tissues and chemistry combine for versatile hydrogels https://phys.org/news/2023-01-squid-tissues-chemistry-combine-versatile.html Eco‐friendly 3D printed polymer composite parts made from chitosan of terrestrial insects https://phys.org/news/2023-04-ecofriendly-3d-polymer-composite-chitosan.html Unusual interactions between polymers explain hydrogel formation https://phys.org/news/2023-04-unusual-int...

https://techxplore.com/news/2023-01-3d-printed-antennas-5g-6g-remote.html "millimeter wave 3D-printed antennas match radio frequency performance of those produced using conventional manufacturing... made much cheaper (cost only a few pounds) and faster (in as little as a few hours)... silver nanoparticles, up to 48 GHz... could also be used to produce antennas on a much larger scale and therefore have the capability to cover more areas and bring the fastest mobile networks to parts of the world that have not yet had access" Related: Scientists develop energy-saving, tunable meta-devices for high-precision, secure 6G communications https://techxplore.com/news/2023-03-scientists-energy-saving-tunable-meta-devices-high-precision.html Spectrumchain: A disruptive dynamic spectrum sharing framework for 6G https://techxplore.com/news/2023-03-spectrumchain-disruptive-dynamic-spectrum-framework.html

https://techxplore.com/news/2023-01-internet-illumination-communication-ministration.html "interfaces with Internet of Things to provide intelligent lighting along with information services... transmits information by modulating LED light intensity... supports information services such as localization, data transmission and optical therapy without causing eyestrain or damage... combined sensors, communication modules and smart processing units into individual LED lamps to form node... collects information such as light intensity, color, level of hazardous gas, moving objects"

https://techxplore.com/news/2023-01-nanowire-ultimate-ar-vr-displays.html "microLED exhibits high peak brightness, excellent dark state, high resolution density, small formfactor, and long lifetime... After optimization, effective LEE of blue, green, and red nanowire LEDs increases from [9.3%, 18.8%, 30.6%] to [10.0%, 25.6%, 33.0%], respectively... nanowire LEDs show a pronounced higher efficiency than µLED under small pixel size and high-resolution density" Related: Researchers grow precise arrays of nanoscale LEDs https://phys.org/news/2023-07-precise-arrays-nanoscale.html

https://phys.org/news/2023-01-scientists-quantum-harmonic-oscillator-room.html "controls location and energy of quantum particles... applications: OLEDs and miniature lasers... organic semiconductor produce polaritons which show quantum states...  trapped light in thin layer of organic semiconductor sandwiched between two highly reflective mirrors... Polaritons, like moisture in the air, can condense... corralled this quantum liquid within pattern of laser beams made fluid oscillate... excite sample in one place, polariton lasing in another...  useful not only for lasers, but also for solar cells" Related: Dual-wavelength lasing: A new tool for steering high-harmonic generation https://phys.org/news/2023-05-dual-wavelength-lasing-tool-high-harmonic-generation.html

https://phys.org/news/2023-01-deep-ultraviolet-birefringent-hydrogel-based-2d.html "synthesized two-dimensional (2D) inorganic cobalt-doped titanate (CTO) LC by using a wet chemical method. The 2D LC has large magnetic & optical anisotropy as well as high transmittance of > 70% in the wavelength of 300 ~ 350 nm, which enables the transmitted DUV modulation in a magnetic and portable way... applications: high density data storage, semiconductor micro-nano processing and photolithography" Related: New method to synthesize menthol https://phys.org/news/2023-03-method-menthol.html Engineering team develops multifunctional tendon-mimetic hydrogels https://medicalxpress.com/news/2023-04-team-multifunctional-tendon-mimetic-hydrogels.html

https://phys.org/news/2023-01-ai-nanostructures.html "newly discovered structures formed by self-assembly... blending two materials together using just the right chemical grating, and new AI capability CAMERA's gpCAM algorithm led to discovery of three new nanostructures, including a first-of-its-kind nanoscale ladder... focus X-ray beam on sample down to microns, whereby algorithm without human intervention, created material's numerous and diverse set of structures, updating with each subsequent X-ray measurement... electronics, catalysis applications" Related: Chemists cook up brand-new kind of nanomaterial https://phys.org/news/2023-01-chemists-cook-brand-new-kind-nanomaterial.html Unconventional experiments produce new nanoscale particles with big potential https://phys.org/news/2023-01-unconventional-nanoscale-particles-big-potential.html AI-powered platform lays the foundation for a new era of catalyst discovery https://www.eurekalert.org/news-releases/1134175

https://www.pv-magazine.com/2023/01/13/lithium-sulfur-flow-battery-with-250-wh-l-energy-density/ "StorTera low levelized cost of storage, long-duration, millisecond response single liquid flow battery lasts 30 years with minimal degradation... can be commercialized at scale... up to eight hours storage... minimum 7,500 cycles... improved safety no cooling requirements high flash point... recyclable materials... cost GBP 120 ($146.20)/kW and GBP 75/kWh... intelligent control platform optimizes continuously according to grid and weather data or by predicting demand peaks" Related: Protecting lithium metal anodes to enable long cycling practical Li-S batteries https://techxplore.com/news/2023-01-lithium-metal-anodes-enable-li-s.html Highly performing lithium sulfur batteries based on metallic molybdenum disulfide nanosheets https://techxplore.com/news/2023-01-highly-lithium-sulfur-batteries-based.html Elucidation of electrolyte decomposition behavior in all-solid-state lithium-s...

https://techxplore.com/news/2023-01-technology-aluminum-component-production-car.html "Low-Pressure Casting (LPC)... cast bolts used in suspension components and eliminate extrusion stage from production process... results in fewer defects and gives raw material a high-quality surface finish... less expensive, more eco-friendly, more efficient and quicker... prevents wastage of large amounts of raw materials... gamechanger in the manufacture of aluminum car components" Related: Could single-sided welding unlock windfarm bottlenecks? https://www.powerengineeringint.com/renewables/wind/could-single-sided-welding-unlock-windfarm-bottlenecks/ Tesla achieves breakthrough in single-piece car casting, report says https://electrek.co/2023/09/14/tesla-breakthrough-single-piece-car-casting-report/

https://techxplore.com/news/2023-01-precision-arm-miniature-robots.html "ultrasonically actuated glass needle attached to robotic arm to pump and mix minuscule amounts of liquid and trap particles... combining conventional robotics and microfluidics... thin, pointed glass needle and a piezoelectric transducer that causes the needle to oscillate... 3D pattern of multiple vortices depends on oscillation frequency, so can be controlled accordingly... sorting objects, capture fish embryos and biological cells, introducing DNA into individual cells, additive manufacturing and 3D printing" Related: Using sound waves to propel a microrobot through narrow tubes https://techxplore.com/news/2023-09-propel-microrobot-narrow-tubes.html Researchers develop low-cost and multifunctional microprinter for ultrafast piezoelectric material printing https://techxplore.com/news/2023-11-low-cost-multifunctional-microprinter-ultrafast-piezoelectric.html Researchers introduce knitted furniture h...

https://phys.org/news/2023-01-hydrogen-storage-material-key-restriction.html "Magnesium hydride's (MgH2) bond strength decreases as dehydrogenation process continues... Hydrogen migration and desorption easier following initial burst effect... Structural engineering tweaks that promote this desorption process key to facilitating hydrogen desorption of MgH2... establishes important guidelines for modifying MgH2-based hydrogen storage materials...  paves way for widespread commercial use" Related: The Hydrogen Stream: China Southern Power connects hydrogen plants to grid https://www.pv-magazine.com/2023/03/28/the-hydrogen-stream-china-southern-power-connects-hydrogen-plants-to-grid/?h2fd Storing hydrogen in coal may help power clean energy economy https://techxplore.com/news/2023-05-hydrogen-coal-power-energy-economy.html Tritonex – an absolute game changer for all things hydrogen https://news.fmbusinessdaily.com/2023/10/tritonex-an-absolute-game-changer-for-all-things-hydr...

https://newsroom.unsw.edu.au/news/science-tech/new-spin-control-method-brings-billion-qubit-quantum-chips-closer? "precisely controlling single electrons (rather than magnetic fields) nestled in quantum dots that run logic gates... less bulky and requires fewer parts... based on the same CMOS technology as today’s computer industry making this method easier and faster to scale up and closer to goal of fabricating billions of qubits on a single chip"

https://techxplore.com/news/2023-01-modification-shor-algorithm-powerful-quantum.html "optimization algorithm speed up processing steps that take the most work in original algorithm, and thus the most time... proved works by factoring 48-bit number on quantum computer with just 10 qubits... quantum computer using 372 qubits running their algorithm could crack any of the cryptosystems in use today... however, today's quantum computers have error rates so high that impossible to use them to crack cryptosystems... Ultimate solution: quantum-secure communications using quantum key distribution"

https://news.northwestern.edu/stories/2023/01/now-on-the-molecular-scale-electric-motors/ "like in a macro motor, electrons drive a molecular motor... 2nm wide, produced en masse, easy to make, operates quickly and does not produce any waste products... catenane whose components ― a loop interlocked with two identical rings ― are redox active undergoing unidirectional motion in response to changes in voltage potential... electric molecular motor could team up with biomolecular motors in the human body... could drive innovations in materials science and medicine" Related: Novel design helps develop powerful microbatteries https://techxplore.com/news/2023-01-powerful-microbatteries.html Novel molecular motor moves with uni-directionality in straight line https://phys.org/news/2023-09-molecular-motor-uni-directionality-straight-line.html Understanding bacterial motors may lead to more efficient nanomachines https://phys.org/news/2023-09-bacterial-motors-efficient-nanomachines.ht...

https://www.laserfocusworld.com/optics/article/14287990/terahertz-photonic-circuits-possible-with-active-and-passive-components "integrates terahertz photonics with planarized low-loss polymers—enabling signal propagation with passive elements and coherent source integration for broadband sensing and telecommunication... coherent comb sources, passive waveguides, reflectors, out-couplers, amplitude and phase control elements, and more... improving laser and frequency comb performance—it significantly improves dispersion, RF, and thermal properties... we’re hopefully not far from room temperature operation" Related: Integrated photonic circuits could help close the 'terahertz gap' https://techxplore.com/news/2023-01-photonic-circuits-terahertz-gap.html

https://phys.org/news/2023-01-humidity-key-super-lubricity.html "silicon oxide probe on a graphite basal plane... super-low friction increased 25X by water vapor and 45X by phenol vapor... water (from humidity) adsorbed on silica surface forms nanostructure similar to ice rearranging structure so that ice and graphite lattices match causing friction to go up... controlling material's surface humidity adjusts how silica slides on top of graphite surface... a super-lubricity on-off switch" Related: Researchers find the key to reducing drag on superhydrophobic surfaces can come down to a single parameter https://phys.org/news/2023-02-key-superhydrophobic-surfaces-parameter.html Chemically functionalized polymer nanoparticles reduce friction on steel surfaces https://phys.org/news/2023-02-chemically-functionalized-polymer-nanoparticles-friction.html Researchers dynamically tune friction in graphene https://phys.org/news/2023-09-dynamically-tune-friction-graphene.html A novel ...

https://www.plasticstoday.com/materials/avient-introduces-cross-linkable-formulations-photovoltaic-cables "can be used for both cable insulation and jacket coating, reducing the need for cable manufacturers to use multiple materials... good UV and weather resistance... enable high processing speeds and, because of their unique technology, can offer up to a 50% reduction in catalyst usage"

  https://techxplore.com/news/2023-01-approach-3d-hydrogel-based-electronics.html "printing conductive hydrogel ink into hydrogel supporting matrix, curing the two parts to form soft and stretchable device... orthogonal curing mechanism of alginate and polyacrylamide, main components of the hydrogel... combining conductive filler of silver flakes with granular gel particles to form segregated structure in conductive 3D printing ink... electrical conductivity of 1,400 S/cmcreated... hydrogel-based strain sensors, inductors and biological electrodes that performed exceptionally well" Related: Inverse design method used to improve porous surface texture of 3D printed objects https://techxplore.com/news/2023-03-inverse-method-porous-surface-texture.html Zero-waste synthesis of new supramolecular materials with remarkable mechanical properties https://phys.org/news/2023-09-zero-waste-synthesis-supramolecular-materials-remarkable.html INSU200, is a Dielectric Ink With Leading Therm...

https://phys.org/news/2023-01-milestone-light-driven-electronics.html "excitons (electrically neutral quasiparticles) in topological insulator... light-driven computer chips and quantum technologies... topological insulators enable lossless conduction of electrical current and robust information storage... created excitons applying short light pulse to thin film of one layer atoms... excitons activated in topological insulator... could be used to generate qubits... bismuthene's heavy atoms make it topological insulator... at room temperature... could pave way for topological qubits" Related: System combines light and electrons to unlock faster, greener computing https://techxplore.com/news/2023-09-combines-electrons-faster-greener.html

https://techxplore.com/news/2023-01-laser-lays-groundwork-next-generation-ethernet.html "200 Gb/s over a record distance of 10 kilometers... next-generation data centers for 800G and 1.6T ethernet... lumped electrode electro-absorption (EA) modulator DFB laser... less chromatic dispersion... low transmitter and dispersion eye closure quaternary (TDECQ) values, indicating solid transmitter performance... also useful for longer reach 5-km CWDM4 applications" 

https://phys.org/news/2023-01-quantum-states-individual-molecules-two-dimensional.html "allow development of new artificial materials and single-molecule electronics with exotic properties... ultimate miniaturization of classical computer memories to molecular level... 2D SnTe, useful for ferroelectric molecular switching: control of individual molecules merely by applying a voltage to substratestate... electrically switchable quantum states is a major milestone in quantum materials" Related: Make them thin enough, and antiferroelectric materials become ferroelectric https://phys.org/news/2023-02-thin-antiferroelectric-materials-ferroelectric.html 'Magic' solvent creates stronger thin films https://phys.org/news/2023-02-magic-solvent-stronger-thin.html Thinnest-ever freestanding film with ferroelectric properties https://phys.org/news/2023-04-thinnest-ever-freestanding-ferroelectric-properties.html Manipulated hafnia paves the way for next-generation memory devices ht...

https://phys.org/news/2023-01-3d-atom-catalysts.html "greater surface area... cost-effective efficient and tailored catalytic reactions with extremely high catalytic activity... paving way for large-scale commercial production with broad industrial applications... 3D printing also cost-effective and allows customization of geometric designs from millimeters to meters... instrument allows us to differentiate between cobalt bonding to light elements, like carbon, or cobalt bonding to other cobalt to form nanoparticles" Related: Exploring the potential of single-atom catalysts https://phys.org/news/2024-04-exploring-potential-atom-catalysts.html Artful single-atom catalyst for sustainable chemical and pharmaceutical synthesis https://www.eurekalert.org/news-releases/1080458 A new take on the abilities of hydrogen binding energy for use in single atom catalysts https://www.eurekalert.org/news-releases/1080840 New approach reversibly configures single and heteronuclear dual-atom c...

https://techxplore.com/news/2023-01-bayesian-machine-based-memristors.html "memristors perform both computations and information storage; the storage without consuming energy... memory functions integrated as close as possible to computation functions... Bayesian prototype comprises 2,048 hafnium oxide memristors and 30,080 silicon transistors (MOSFETs)... 1,000'sX less energy than traditional hardware solution based on microcontroller... AI models, and safety-critical applications such as medical sensors or circuits to monitor safety of industrial facilities" Related: How bio-inspired materials might inform the design of next-generation computers https://techxplore.com/news/2023-01-bio-inspired-materials-next-generation.html A deep belief neural network based on silicon memristive synapses https://techxplore.com/news/2023-01-deep-belief-neural-network-based.html Researchers develop fluidic memristor with diverse neuromorphic functions https://phys.org/news/2023-01-fluidi...

https://phys.org/news/2023-01-source-entangled.html "optical parametric oscillator (OPO) light source made of non-linear optical response crystal between two mirrors forming optical cavity. Shine bright green beam on apparatus, crystal-mirror dynamics produces two light beams (actually produced four) with quantum correlations... critical: intensity, beams' phases, light wave synchronization, temperature (not too hot)... use of rubidium OPOs more efficient than crystal OPOs since avoids the need for mirrors to imprison the light for such a long time" Related: Researchers create 2D quantum light source from layered materials https://phys.org/news/2023-01-2d-quantum-source-layered-materials.html

"membrane with the 40% crosslinking (40x-PBB-SEBS) proved to be the most optimal with respect to its balance between toughness and elasticity. It also demonstrated a very high ionic conductivity of 72.28–146.25 mS cm-1, and outstanding alkaline and oxidative stability, due to its increased crosslinking surpassed performance of commercial membrane by huge margin, when tested in real time using AEM water electrolysis" Related: Facile and scalable production of a fuel-cell nanocatalyst for the hydrogen economy https://phys.org/news/2023-02-facile-scalable-production-fuel-cell-nanocatalyst.html Energy-efficient and customizable inorganic membranes for a cleaner future https://phys.org/news/2023-03-energy-efficient-customizable-inorganic-membranes-cleaner.html Improving fuel cell durability with fatigue-resistant membranes https://www.sciencedaily.com/releases/2024/02/240206145004.htm

https://phys.org/news/2023-01-electron-triggered-emissions-quantum-based-communications.html "increase light emission 100X from Smith-Purcell radiation... slab of silicon on insulator etched with array of nanometer-scale holes... produce emissions of any wavelength by adjusting size of photonic structure and speed of electrons... creating terahertz waves, ultraviolet light and X-rays... could build electron accelerators on chip... for radiotherapy you wouldn't have to build huge facilities... generate multiple entangled photons... quantum-based computational and communications systems" Related: First Nb₃Sn superconducting radio-frequency electron accelerator achieves stable acceleration https://phys.org/news/2024-05-nbsn-superconducting-radio-frequency-electron.html

https://phys.org/news/2023-01-superconductivity-ferroelectricity-2d-material.html "single layered MoTe2... one approach to building quantum computers involves combining superconducting materials with insulating barrier in between to form Josephson junctions... use of single material, like MoTe2, rather than two separate ones could help eliminate interfacial problems that can make these junctions less efficient. The rapid speed at which the material can be switched between the two properties may also hold promise for quantum logic applications"

https://phys.org/news/2023-01-newly-carbon-graphene-superatomic-cousin.html "a new 2D carbon... layers of linked fullerenes peeled into ultrathin thin flakes from a larger graphullerite crystal somewhere between fullerene and graphene... incredibly modular 60 carbon atoms in the ball to work with, fullerenes can theoretically be linked together in a number of different ways, each of which could yield different electronic, magnetic, and optical properties... discoveries of both graphene and fullerenes were incredibly impactful; will be interesting to see applications for combination of both" Related: Discovery of a new form of carbon called Long-range Ordered Porous Carbon (LOPC) https://www.ibs.re.kr/cop/bbs/BBSMSTR_000000000738/selectBoardArticle.do?nttId=22427&pageIndex=1&searchCnd=&searchWrd= Discovery of a crucial clue to accelerate the development of carbon-neutral porous materials https://phys.org/news/2023-04-discovery-crucial-clue-carbon-neutral-porous.htm...

https://phys.org/news/2023-01-ultrathin-vanadium-oxychloride-strong-optical.html "characterized directionality of optical properties of the 2D material in response to arrangement of atoms, using polarized light... in-plane optical brightness, absorption, reflection, crystal orientation and symmetry of the ultrathin material changes due to atomic structure and angle of light directed at it... applications of spintronics and optospintronics... photodetectors, linear-polarization light generators, strain sensors and artificial synapse devices, quantum computing and energy storage" Related: Using lasers, researchers can directly control the spin of nuclei, which can encode quantum information https://phys.org/news/2023-02-lasers-nuclei-encode-quantum.html Researchers develop atomic spin oscillator with high stability https://phys.org/news/2023-07-atomic-oscillator-high-stability.html

https://techxplore.com/news/2023-01-terahertz-wireless-link-bridge-digital.html "high-speed, high-bandwidth wireless communication at terahertz frequency across long distances... able to form 2 km link... Instead of trying to fix information at receiver, pre-distort signal such that when goes through source, becomes error-free... frequencies and bandwidths that eclipsed 5G networks by more than two orders of magnitude... need to have line of sight so no obstacles to signal's path; great for connecting towers across farms, lands... eventually may beam from space" Related: Highspeed visible light communication based on micro LEDs https://techxplore.com/news/2023-01-highspeed-visible-communication-based-micro.html A system to enable multi-kilometer and sub-terahertz communications at extremely high frequency bands https://techxplore.com/news/2023-01-enable-multi-kilometer-sub-terahertz-communications-extremely.html Revolutionizing Wireless Power: Scientists Achieve Breakthro...

https://phys.org/news/2023-01-playing-angles-high-contrast-direction-tunable-lasing.html "wide range -40° to +40° beam-steering... multi-angle lasing field up to 80°... laser cavity using a one-dimensional suspended high-contrast grating structure that gave rise to Friedrich-Wintgen BIC. This type of BIC originates from coupling of two resonance states residing in same cavity and radiating over the same emission channel... does not require external passive components to modulate emission angle... higher power efficiency... large-scale, high-resolution laser scanning... lidar and 3D sensing" Related: Scientists achieve phonon and photon lasing in optomechanical cavities https://phys.org/news/2023-01-scientists-phonon-photon-lasing-optomechanical.html

https://www.science.org/doi/10.1126/sciadv.add7118 "biodegradable... physical vapor deposition and laser patterning for electronic traces with conductivities as high as 9.75 ± 1.44 × 104 S cm−1. The conformal and flexible electronic mycelium skins withstand more than 2000 bending cycles and can be folded several times with only moderate resistance increase. We demonstrate mycelium batteries with capacities as high as ~3.8 mAh cm−2 used to power autonomous sensing devices including a Bluetooth module and humidity and proximity sensor" Related: Strategic Elements makes battery breakthrough with innovative Energy Ink technology https://www.proactiveinvestors.com/companies/news/1009632/strategic-elements-makes-battery-breakthrough-with-innovative-energy-ink-technology-1009632.html Inspired by nature: Leaftronics pave way for biodegradable electronics https://tu-dresden.de/tu-dresden/newsportal/news/von-der-natur-inspiriert-leaftronics-ebnet-den-weg-fuer-biologisch-abbaubare-elekt...

https://www.laserfocusworld.com/lasers-sources/article/14287724/quantum-communications-get-added-dimensions-thanks-to-microlaser-chip "doubles quantum information space improving security and robustness... microlaser chip; two same-sized micro-ring resonators on III-V semiconductor platform... Each ring resonator hosts clockwise and counterclockwise propagating modes... any states within 4D angular momentum space easily generated by controlling optical pump... scalable and compact, easy to deploy on communication satellites or towers, satellite-to-Earth communications and tower-to-tower communications... high-capacity, noise-resilient" Related: Detecting manipulations in microchips https://techxplore.com/news/2023-03-microchips.html

https://www6.slac.stanford.edu/news/2022-12-05-researchers-adapt-nobel-prize-winning-method-design-new-ultra-powerful-x-ray "X-ray pulses 10X more powerful while staying within Linac Coherent Light Source, LCLS's, existing free-electron laser infrastructure... beam parameters of greater than 1 terawatt peak power and pulse duration 1 femtosecond at same time... works like atomic-resolution camera... ultrabright, ultrafast X-ray pulses for many applications: imaging dynamics of biological molecules, studying astrophysics in the laboratory, and observing how photons interact with matter" Related: Organic materials show promise for improved X-ray imaging https://phys.org/news/2023-01-materials-x-ray-imaging.html Scientists demonstrate quantum recoil for the first time, paving the way for precise X-ray imaging https://phys.org/news/2023-01-scientists-quantum-recoil-paving-precise.html Team develops new way to generate powerful and focused X-rays using electron waveshaping htt...

  https://phys.org/news/2023-01-quantum-architecture-large-scale-devices.html "built four qubit module... preparing the two qubits in an entangled state of single excitation called a Bell state to ensure emitted photon travels in correct direction... achieved more than 96% fidelity—this means if intended to emit photon to the right, 96% of the time it went to the right... connect multiple modules and emit and absorb photons... modular architecture that combines many smaller-scale processors into one larger-scale, and more powerful, quantum processor" Related: Rolling out the carpet for spin qubits with new chip architecture https://phys.org/news/2026-02-carpet-qubits-chip-architecture.html

https://phys.org/news/2023-01-high-performance-visible-light-lasers-fingertip.html "compact and tunable visible lasers... robust and versatile platform... Fabry-Perot (FP) diodes as the light sources, which minimizes the impact of the losses on the performance of the chip-scale lasers... to guide the light, they used silicon nitride, a dielectric widely used in the semiconductor industry that is transparent for visible light of all colors scalable and works for all colors of light... quantum information, atomic clocks, biosensing, underwater ranging, Li-Fi (visible light communications)" Related: World’s first tunable-wavelength blue semiconductor laser https://www.asiaresearchnews.com/content/tune-world%E2%80%99s-first-tunable-wavelength-blue-semiconductor-laser Cavity dynamics enables resolution enhancement in laser ranging https://www.eurekalert.org/news-releases/1114887

https://techxplore.com/news/2023-01-next-generation-wireless-technology-leverage-human.html "6G Visible Light Communication (VLC)... flashes of light to transmit information... uses light from LEDs that can turn on and off, up to one million times per second... leakage of energy in VLC systems, because the LEDs also emit radio waves... harvest waste energy from VLC using human body as antenna... anything with camera, like smartphones, tablets or laptops, could be receiver... power wearable devices, or even, perhaps, larger electronics" Related: A wi-fi sensing system that creates 3D human meshes https://techxplore.com/news/2023-02-wi-fi-3d-human-meshes.html A win-win approach: Maximizing Wi-Fi performance using game theory https://techxplore.com/news/2024-04-approach-maximizing-wi-fi-game.html

https://phys.org/news/2023-01-photon-detector-advance-quantum-technology.html "on-chip photon-number-resolving (PNR) detector that can resolve up to 100 photons at a time... shows its power in resolving photon statistics of light pulse... lower signal loss... higher fidelity of measurement... improves counting rate three orders of magnitude... operates at easily accessible temperature...  quantum cryptography, remote sensing, large-scale Boson sampling, photonic quantum computing, and quantum metrology" Related: IEEE study reveals breakthroughs in high-performance photon detectors https://www.eurekalert.org/news-releases/1073589 Fabrication method advances high-performance photon detector technology https://phys.org/news/2025-02-fabrication-method-advances-high-photon.html

https://techxplore.com/news/2023-01-high-performance-solid-state-batteries-ultra-thin-solid.html "composite of a polymer and ceramic nanofibers coats (7 µm thin) porous surface of cathode forming solid electrolyte that has stable contact with cathode... increases energy storage capacity... increases operational reliability (no leaks or fires)... dendrite problem eliminated or significantly reduced... high theoretical capacity and stability, and low electrochemical potential" Related: Factorial Introduces 100 Amp-Hour Solid-State Battery Cell at CES 2023 https://evmagz.com/factorial-introduces-100-amp-hour-solid-state-battery-cell-at-ces-2023/ On the road to better solid-state batteries https://techxplore.com/news/2023-02-road-solid-state-batteries.html Controlling electric double layer dynamics for next generation all-solid-state batteries https://techxplore.com/news/2023-03-electric-layer-dynamics-generation-all-solid-state.html Stalactites and stalagmites in the battery...

https://phys.org/news/2023-01-chip-circuit-quantum.html "hybrid circuit are initially two separate chips: (1) gallium arsenide semiconductor device hosts the quantum dots and directly funnels the single photons they generate into a (2) low-loss silicon nitride waveguide... to marry the two components, researchers used the fine metal tip of a pick-and-place microprobe, acting like a miniature crowbar, to pry the gallium arsenide device off of the first chip and place it atop the silicon nitride circuit of the second chip... larger, speedier, more reliable systems"

https://phys.org/news/2023-01-electrode-chlorine-gas-high-power.html "lizard brings air bubble to breathe... 3 nm diameter porous carbon materials hold onto layer of chlorine gas (not air) when submerged in salt electrolyte... no chlorine gas escapes electrode... with charging, electrons reduce chlorine gas to chloride ions...  discharging oxidizes chloride ions back to chlorine gas in porous carbon... rapid reduction/oxidation and rapid mass transfer in thin layer gas increases energy density of supercapacitor while maintaining high power density even after thousands of cycles"

https://www.pv-magazine.com/2023/01/02/new-electrolyzer-to-split-saltwater-into-hydrogen/?h2fd "incorporates self-breathable waterproof membrane and self-dampening electrolyte (SDE) into the electrolyzer, so water migrates from seawater across membrane to SDE without extra energy consumption (energy consumption comparable to that of industrial alkaline electrolysis with pure water)... fabricated scaled-up SES 82 cm x 62 cm x 70.5 cm... stable performance for more than 3,200 hours and energy consumption 5.0 kWh Nm-3H2, with no detectable increase in impurity ions" Related: Cheap, sustainable hydrogen through solar power https://news.umich.edu/cheap-sustainable-hydrogen-through-solar-power/  See also: Solar Panel That Splits Water Boosts Hydrogen Fuel Production Efficiency  https://www.youtube.com/watch?v=tBsmI5O2IbE A step towards solar fuels out of thin air https://actu.epfl.ch/news/a-step-towards-solar-fuels-out-of-thin-air/ New method to introduce efficient water splitt...