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Showing posts with the label spectroscopy

MultiQ-IT mass spectrometer can hold up to ten billion charges simultaneously, roughly 1,000 times the capacity of conventional traps

https://www.rockefeller.edu/news/39200-most-mass-spectrometers-can-process-just-a-few-molecules-at-once-a-reengineered-prototype-does-a-billion-simultaneously/ "mass spectrometers process ions sequentially, overcome replacing core ion-trapping chamber with cube-shaped device having >1K electrically controlled openings... electrical voltage barriers let abundant background molecules leak out while trapping rarer, information-rich molecules, improving signal-to-noise ratio as much as 100X... tracking 1,000s chemical reactions simultaneously, structural biology, reading single cell's full protein content where rare molecules often drowned out by abundant ones"
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Spatial-resolved asynchronous-sampling THz spectroscopy overcomes trade-off between high spectral/ high spatial resolution

https://www.eurekalert.org/news-releases/1111836 "integrates: (1) asynchronous optical sampling using 2 lasers, slightly different frequencies providing high-speed scanning/ 100 MHz spectral resolution identifying chemical signatures, (2) photoconductive probe, 20 µm spatial resolution for near-field detection observing how light interacts with surfaces... using small detection area, filters out noise from samples' edges, providing cleaner data... verifies light-matter interaction models in real-time... wireless communications, chemical sensors, nonlinear THz devices" Related: First-ever in-situ polarization control achieved in high-field infrared spectroscopy https://www.eurekalert.org/news-releases/112057
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Broadband white-light (supercontinuum) generation inside water enhanced 1,000X using non-harmonic two-color femtosecond laser excitation

https://www.eurekalert.org/news-releases/1105371 "focuses a 1036 and a non-integer-related 1300 nm seed wavelength into water, amplifying cooperative nonlinear optical effects: soliton compression, dispersive-wave emission, 4-wave mixing, cross-phase modulation... advances liquid photonics/ ultrafast optics: deep-tissue biophotonics/ bioimaging. aqueous-phase/ ultrafast interfacial spectroscopy, attosecond electron-dynamics studies in water, optical sensing/ nonlinear photonics using water as a platform" Related: New Record: DTU researchers double the range of low-noise "white lasers" in a single fiber https://www.eurekalert.org/news-releases/1139115
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Reflective micro color display with a record-high resolution of 25,000 pixels per inch operates at 25 frames per second

https://techxplore.com/news/2025-10-minimal-pixels-highest-resolution-visible.html "highest resolution visible to human eye: each pixel roughly corresponds to 1 photoreceptor in eye... sub-wavelength structures act as meta-materials in highly miniaturized spectrometer... few square mm size is orders of magnitude smaller, fits on phone... measures UV to near-IR with sensitivity comparable to big devices... rapidly applying range of <1 volt voltages, measures light captured at each voltage, then computational program accurately recreates light's signature in <1 ms... hand-held spectroscopy devices" Related: Bridging light, microwaves and electrons for precision calibration https://phys.org/news/2025-10-bridging-microwaves-electrons-precision-calibration.html Pocket-sized device rivals bulky lab machinery in disease and environmental testing https://phys.org/news/2026-05-pocket-sized-device-rivals-bulky.html
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Driving magnetized plasma with femtosecond laser pulses generates Poincaré THz beams carrying both spin and orbital angular momentum

https://www.eurekalert.org/news-releases/1099904 "powerful, structured strong-field THz from magnetized plasma, with topologically programmable polarization textures, including ellipticity/ spatial orientation—tuning methods: adjusting angle between magnetic field/ laser propagation, optimization of laser spot size, varying plasma density tuning frequency while maintaining topological properties... tens to about 150 MV/cm THz field strength... ultrafast quantum control, multidimensional nonlinear spectroscopy, advanced material manipulation" Related: Magnetized plasmas offer a new handle on nanomaterial design https://phys.org/news/2025-10-magnetized-plasmas-nanomaterial.html
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Preparative mass spectrometers chemically synthesize new compounds

https://phys.org/news/2023-11-molecular-beasts-foundation-chemical-compounds.html "synthesized new compound from charged molecular fragment and nitrogen from air... reactive fragments caused by breaking molecular bonds are tamed by vacuum inside modified mass spectrometers, meaning there is nothing for fragments to attack, so uncontrolled chemical reactions are prevented... molecules difficult to bind, such as nitrogen, can be easily incorporated into new substance in stead of being produced in only small quantities and destroyed... microchips, solar cells or biologically active coatings" Related: Researchers develop gold nanowire spectroscopy system to reveal how trions are generated https://phys.org/news/2024-02-gold-nanowire-spectroscopy-reveal-trions.html Researchers develop the first miniaturized ultraviolet spectrometer chip https://phys.org/news/2025-10-miniaturized-ultraviolet-spectrometer-chip.html AI-powered spectrometer chip shrinks lab technology to the size of a ...
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