Results 251 to 260 of about 452,793 (301)

Stimulated Forward Brillouin Scattering in Subwavelength Grating Silicon Membranes

Laser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.
This work proposes a novel strategy to achieve large Brillouin scattering with independent control of the optical and mechanical modes using subwavelength silicon membranes. We experimentally demonstrate remarkably high Brillouin gain, resulting in an on/off Stokes gain of 3 dB and anti‐Stokes loss of 4 dB in a 6 mm‐long waveguide with 35 mW of on‐chip
Paula Nuño Ruano, Jianhao Zhang, David González‐Andrade, Daniele Melati, Eric Cassan, Pavel Cheben, Laurent Vivien, Norberto Daniel Lanzillotti‐Kimura, Carlos Alonso‐Ramos   +8 more
wiley   +1 more source

Giant room-temperature terahertz photothermoelectric response mediated by hot carriers at the metal-semimetal interfaces. [PDF]

Sci Adv
Cai M, Zhang J, Chen Y, Hong L, Fu J, Zheng X, Yao Y, Zhang S, Liu Y, Dong B, Chen S, Li P, You G, Zhang J, Guo X, Zhu Y, Zhuang S.   +16 more
europepmc   +1 more source

Shining Light on Quantum Materials: Interplay of Symmetry, Quantum Geometry, and Nonlinear Photocurrents

Advanced Quantum Technologies, Volume 9, Issue 9, September 2026.
Nonlinear photocurrents provide broadband spectroscopic access to quantum materials from terahertz to optical frequencies. Their sensitivity to spin, orbital, chiral, topological, and quantum‐geometric properties enables insights across ferroelectrics, magnetic and two‐dimensional materials, moiré heterostructures, topological flat bands, and light ...
Kurosch Mehrgan, Alexandre Bernard, Christoph Kastl   +2 more
wiley   +1 more source

Non-destructive inspection of oil-water two-phase systems by terahertz optoacoustics. [PDF]

Photoacoustics
Yao Y, Zhang C, Du K, Wang K, Li J, Tian Z, Zhang W.   +6 more
europepmc   +1 more source

What Voting Power Cannot Be

Noûs, Volume 60, Issue 3, Page 548-562, September 2026.
ABSTRACT “Almost everyone,” Ronald Dworkin wrote in Sovereign Virtue, “assumes that democracy means equal voting power.” What, then, is voting power? The standard view defines it as the probability that a vote changes the outcome assuming that each possible combination of votes is equiprobable.
Daniel Wodak
wiley   +1 more source

Fabrication of Terahertz Fresnel Zone Plates via Ultraprecision Mechanical Processing. [PDF]

Micromachines (Basel)
Chen M, Wang J, Fang F.
europepmc   +1 more source

Planar Super‐Oscillation Diffractive Lenses: Practical Developments and Applications

Nanophotonics, Volume 15, Issue 16, 26 August 2026.
This review examines planar super‐oscillation diffractive lenses as a unified framework for super‐oscillatory lenses and supercritical lenses. It focuses on applications in super‐resolution imaging, micro/nanofabrication, and precision measurement and relates their application‐specific requirements to focal‐field control, multiobjective design ...
Yutian Cheng, Lingyi Tang, Xingcheng Xiao, Xiaochang Yu, Ya Guo, Yiting Yu, Wenli Li   +6 more
wiley   +1 more source

Unsupervised disparity-tolerant algorithm for terahertz image stitching. [PDF]

Sci Rep
Wu X, Bai F, Li L, Gao Y, Wang W, Cai H.
europepmc   +1 more source

Deep‐Learning‐Assisted Design of Dynamically Tunable Near‐Infrared Dual‐Band Lithium Niobate Metamaterial Absorber for Optical Communication

Nanophotonics, Volume 15, Issue 16, 26 August 2026.
An end‐to‐end deep‐learning framework combining inverse prediction and gradient refinement enables rapid design of dynamically tunable lithium‐niobate metamaterial absorbers for optical communication. Near‐perfect dual‐band absorption is achieved at 1310 and 1550 nm with electro‐optic wavelength tuning.
Xiajun Liu, Zexuan Zhang, Chenxi Su, Mei Wang, Feng Xia, Peng Sun, Li Dong, Maojin Yun   +7 more
wiley   +1 more source

On-Chip THz-TDS Platform for High-Sensitivity Analysis of Graphene and Thin-Film Conductors. [PDF]

Nano Lett
Lee J, Michalski A, Sawallich S, Lemme MC, Nagel M.   +4 more
europepmc   +1 more source