Results 291 to 300 of about 74,154 (347)

Progress in Resource Evaluation Using a Handheld Raman Instrument Developed for Astronaut Missions

Journal of Raman Spectroscopy, EarlyView.
Analogue studies were undertaken using a prototype, handheld Raman spectrometer (developed for astronaut usage on the moon) to collect data that would indicate the presence of water and help develop the technology to search for valuable trace elements (such as lithium and caesium).
J. G. T. Armstrong, M. McHugh, J. Parnell, H. N. Lerman, A. Moral, I. B. Hutchinson   +5 more
wiley   +1 more source

Revealing growth increments in fossil and modern otoliths with backscattered electron imaging

Limnology and Oceanography: Methods, EarlyView.
Abstract Otoliths, the functional earstones of teleost fishes, record growth in the form of microscopic increments, making them key archives of individual life histories. While increment analysis is commonly applied to modern otoliths, studies of fossil (Holocene) otoliths remain limited.
Isabella Leonhard, Emilia Jarochowska, Rafał Nawrot, Lovrenc Lipej, Martin Zuschin   +4 more
wiley   +1 more source

JWST Detects Silane in a Cold Low-Metallicity World

Faherty J, Meisner A, Burningham B, Visscher C, Suarez G, Gagne J, Merchan SA, Rothermich A, Line M, Burgasser A, Schneider A, Caselden D, Kirkpatrick D, Kuchner M, Gagliuffi DCB, Eisenhardt P, Gelino C, Gonzales E, Marocco F, Leggett S, Lodieu N, Casewell S, Tremblin P, Cushing M, Osorio MRZ, Béjar V, Gauza B, Wright E, Phillips M, Zhang J, Martín E.   +30 more
europepmc   +1 more source

Collective excitations and low-energy ionization signatures of relativistic particles in silicon detectors. [PDF]

Commun Phys
Essig R, Plestid R, Singal A.
europepmc   +1 more source

Compact Spectral Imaging: A Review of Miniaturized and Integrated Systems

Laser &Photonics Reviews, EarlyView.
This review explores the rapid shift toward compact spectral imaging systems by examining four key design paradigms: Do‐It‐Yourself (DIY) platforms, freeform optics, filter‐on‐chip integration, and multifunctional metasurfaces. The discussion highlights critical applications in medicine, agriculture, and environmental monitoring, providing comparative ...
Sani Mukhtar, Amir Arbabi, Jaime Viegas
wiley   +1 more source

Vortex Beam Lasing from III‐V Nanowires Epitaxially Grown on Silicon‐on‐Insulator

Laser &Photonics Reviews, EarlyView.
An epitaxially grown InGaAs nanowire photonic crystal laser on silicon‐on‐insulator is demonstrated to emit vortex beams carrying orbital angular momentum. Deforming the honeycomb lattice causes the band inversion effect and creates symmetry‐protected bound states in the continuum, enabling single‐mode lasing with a topological charge of −2 ...
Bogdan‐Petrin Ratiu, Ji Tong Wang, Kyle Netherwood, Tim Grieb, Andreas Rosenauer, Sang Soon Oh, Nicolae‐Coriolan Panoiu, Qiang Li   +7 more
wiley   +1 more source

A decade of sub-arcsecond imaging with the International LOFAR Telescope. [PDF]

Astrophys Space Sci
Morabito LK, Jackson N, de Jong J, Escott E, Groeneveld C, Mahatma V, Petley J, Sweijen F, Timmerman R, van Weeren RJ.   +9 more
europepmc   +1 more source

Metasurfaces in Adaptive Optics: A New Opportunity in Optical Wavefront Sensing

Laser &Photonics Reviews, EarlyView.
Wavefront sensing constitutes a critical component of adaptive optics systems, aimed at quantitatively measuring distorted wavefronts and enabling closed‐loop correction in optical setups. Metasurfaces, as planar optical elements composed of nanoscale structures, provide exceptional freedom in modulating multiple dimensions of the light field.
Rundong Fan, Zichao Wang, Pei Li, Lei Huang   +3 more
wiley   +1 more source

Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Our Galaxy. [PDF]

Open Res Eur
Klaassen P, Traficante A, Beltrán M, Pattle K, Booth M, Lovell J, Marshall J, Hacar A, Gaches B, Bot C, Peretto N, Stanke T, Arzoumanian D, Duarte Cabral A, Duchêne G, Eden D, Hales A, Kauffmann J, Luppe P, Marino S, Redaelli E, Rigby A, Sánchez-Monge Á, Schisano E, Semenov D, Spezzano S, Thompson M, Wyrowski F, Cicone C, Mroczkowski T, Cordiner M, Di Mascolo L, Johnstone D, van Kampen E, Lee M, Liu D, Maccarone T, Saintonge A, Smith M, Thelen A, Wedemeyer S.   +40 more
europepmc   +1 more source

Quad‐SPIM: A High‐Speed, Multi‐Color Light‐Sheet Microscope for 3D Imaging of Large Cleared Human Brain Tissues

Laser &Photonics Reviews, EarlyView.
A high‐speed, multi‐color light‐sheet microscope, named quad‐SPIM, enables rapid three dimensional (3D) imaging of large cleared human brain samples with simultaneous four‐channel acquisition. This custom‐built system achieves subcellular resolution across centimeter‐scale volumes, maintaining high image quality.
Laura Perego, Franco Cheli, Samuel Bradley, Danila Di Meo, Luca Giannoni, Josephine Ramazzotti, Federica Fenizi Caria, Giuseppe Sancataldo, Michele Sorelli, Giacomo Mazzamuto, Irene Costantini, Francesco Saverio Pavone   +11 more
wiley   +1 more source