Results 231 to 240 of about 614,016 (317)

Thermo‐Derived Cholesteric Liquid Crystal Elastomer Pattern with Composite Structural Colors

Advanced Optical Materials, EarlyView.
A thermochromic cholesteric liquid crystal (CLC) oligomer was synthesized for the preparation of CLC elastomer (CLCE) films with dual reflection bands. Subsequently, a CLCE pattern with composite structural colors was prepared, which was suitably applied for decoration and anti‐counterfeiting.
Li Zhong, Yi Li, Wei Liu, Yonggang Yang
wiley   +1 more source

Laser-based approach to measure small nuclear cross sections in plasma. [PDF]

Proc Natl Acad Sci U S A
Feng J, Qi J, Zhang H, Chen S, Zhu M, Hu X, Xu H, Fu C, Wang X, Chen L, Zhang J.   +10 more
europepmc   +1 more source

Aerosol Jet Printed Polymer‐Free High Aspect Ratio Quantum Dot Films for Enhanced Color Conversion

Advanced Optical Materials, EarlyView.
Polymer‐free quantum dot color conversion layers are aerosol jet printed at high aspect ratio by tuning the aerosol focus ratio to induce in‐flight droplet drying. Contact‐line pinning suppresses lateral spreading, enabling ∼10 µm‐thick films at ∼50 µm widths with blue light leakage below 0.25% and conversion efficiency approaching 18%, demonstrated ...
Sukyung Choi, Anna Meredith, Hyunsu Cho, Zahra Bahrami, Kevin Schnittker, Joseph Andrews   +5 more
wiley   +1 more source

Chip‐Integrated Metasurface‐GaAsSb Nanowire Array Photodetectors for Single‐Pixel Polarimetric Imaging

Advanced Optical Materials, EarlyView.
A 2×2 multiplexed GaAsSb nanowire photodetector array integrated with L‐shaped metasurfaces is developed for miniaturized infrared polarimetry. Leveraging non‐radiating anapole states that facilitate near‐field enhancement, the device demonstrates strong polarization selectivity at 835 nm.
Longsibo Huang, Ziyuan Li, Yitao Yang, Yang Yu, Lei Xu, Li Li, Songqin Zhang, Han Wang, Wenwu Pan, Chaohao Chen, Weiqi Jin, Wen Lei, Lorenzo Faraone, Chennupati Jagadish, Lan Fu   +14 more
wiley   +1 more source

A nearby dark molecular cloud in the Local Bubble revealed via H₂ fluorescence. [PDF]

Nat Astron
Burkhart B, Dharmawardena TE, Bialy S, Haworth TJ, Cruz Aguirre F, Jo YS, Andersson BG, Chung H, Edelstein J, Grenier I, Hamden ET, Han W, Hoadley K, Lee MY, Min KW, Müller T, Pattle K, Peek JEG, Pleiss G, Schiminovich D, Seon KI, Wilson AG, Zucker C.   +22 more
europepmc   +1 more source

Waveguide Geometry–Driven Trade‐Offs in Resonant Cavity Sensor Performance

Advanced Optical Materials, EarlyView.
Waveguide geometry governs the interplay between sensitivity, intrinsic Q‐factor, and wavelength noise in silicon nitride resonant sensors. Contrary to intuition, higher sensitivity does not ensure superior performance. Low‐noise, high‐Q ridge resonators achieve the lowest detection limits, revealing that detection is ultimately constrained by noise ...
Mohammad Talebi Khoshmehr, Bakiye Imran Akca, Mateusz Słowikowski, Drecka Dagmara, Marcin Juchniewicz, Ryszard Piramidowicz, Muhammad Ali Butt   +6 more
wiley   +1 more source

Multi-messenger gravitational lensing. [PDF]

Philos Trans A Math Phys Eng Sci
Smith GP, Baker T, Birrer S, Collins CE, Ezquiaga JM, Goyal S, Hannuksela OA, Hemanta P, Hendry MA, Janquart J, Keitel D, Levan AJ, Lo RKL, More A, Nicholl M, Pastor-Marazuela I, Ponte Pérez AI, Ubach H, Uronen LE, Wright M, Zumalacarregui M, Bianco F, Çalişkan M, Chan JCL, Colangeli E, Gompertz BP, Haines CP, Hayes EE, Hu B, Lamb GP, Liu A, Mandhai S, Narola H, Nguyen QL, Poon JSC, Ryczanowski D, Seo E, Shajib AJ, Shan X, Tanvir N, Vujeva L.   +40 more
europepmc   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik, Fedor Kovalev, Mingkai Liu, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Mariusz Martyniuk, Ilya Shadrivov   +7 more
wiley   +1 more source

A probable Keplerian disk feeding an optically revealed massive young star. [PDF]

Nature
McLeod AF, Klaassen PD, Reiter M, Henshaw J, Kuiper R, Ginsburg A.   +5 more
europepmc   +1 more source

Spectrophotometric evidence for velocity variability in the HH 34 and HH 111 stellar jets

, 1993
J. Morse, S. Heathcote, P. Hartigan, G. Cecil   +3 more
semanticscholar   +1 more source