Results 131 to 140 of about 16,230 (293)
IET Microwaves, Antennas & PropagationA gain enhancement method is presented for a circularly polarised (CP) wideband Fabry–Perot resonator antenna (FPRA). The proposed antenna structure consists of a multilayer configuration of closely spaced truncated dielectric plates (TDPs) and a ...
Zhixin Lei +5 more
doaj +1 more source
Linear and Third‐Order Nonlinear Optical Response of Hafnium Disulfide
Advanced Optical Materials, Volume 14, Issue 16, 24 April 2026.This study characterizes the linear and nonlinear optical response of HfS2 thin films. Ellipsometry identifies a high in‐plane refractive index (n>${\rm n}>$3) and wide transparency window. Third harmonic generation (THG) reveals a massive third‐order nonlinear susceptibility exceeding silicon and gallium phosphide.
Benjamin Laudert +2 more
wiley +1 more source
Field Programmable Gate Array‐Based Control Systems for Highly Stable Laser Applications
Advanced Photonics Research, Volume 7, Issue 4, April 2026.This review highlights the transition from analog to FPGA‐based digital architectures for laser frequency stabilization, noting their superior latency and flexibility. It focuses on Modulation Transfer Spectroscopy (MTS) as a robust, background‐free method for high‐precision locking that minimizes residual amplitude modulation.
Prosenjit Majumder, Rakesh Tirupathi
wiley +1 more source
Advanced Photonics Research, Volume 7, Issue 4, April 2026.This work demonstrates a reconfigurable near‐perfect absorber based on a Metal– Sb2S3–Metal trilayer structure for applications across the visible and near‐infrared spectrum. The experimentally demonstrated design combines spectral selectivity, polarization sensitivity, angle‐independence, and structural simplicity, validating Sb2S3 as a next ...
Israel Alves Oliveira +5 more
wiley +1 more source
Bioinspired Air‐Gap Self‐Rolled Bragg Reflectors
Advanced Photonics Research, Volume 7, Issue 4, April 2026.This work presents a method of using dry‐etching to produce self‐rolled Bragg reflectors comprising SiO2$_2$ films with prepatterned polymer pillars. The height of these pillars determines the supported resonant modes, and this method enables the fabrication of devices with different numbers of layers within the same sample.
Esteban Bermúdez‐Ureña +1 more
wiley +1 more source
Intelligent Stain‐Free Histology on Structural Colorimetric Nanocavities
Advanced Science, Volume 13, Issue 22, 17 April 2026.Chen and Gan et al. introduce a label‐free imaging platform using inexpensive Nanocavity‐on‐Silicon (NOS) slides. These slides transform subtle tissue variations into vivid structural colors, enabling high‐contrast histological imaging under a regular optical microscope. This stain‐free approach reveals morphological details comparable to traditional H&
Qizhe Chen +18 more
wiley +1 more source
The Effect of Viscous Air Damping on an Optically Actuated Multilayer MoS2 Nanomechanical Resonator Using Fabry-Perot Interference [PDF]
, 2016 Yumei She +5 more
openalex +1 more source
Optical mode conversion in coupled Fabry–Perot resonators [PDF]
, 2020 Mark Stone +4 more
openalex +1 more source
Tunable Sound Absorption via Evanescent‐Wave Coupling in Asymmetric Bilayer Metasurfaces
Advanced Science, Volume 13, Issue 20, 9 April 2026.Tunable sound absorption is realized through a bilayer metasurface system governed by evanescent‐wave coupling. This work demonstrates that such evanescent‐wave coupling provides a controllable scattering channel that destructively interferes with the specular reflection.
Pyung Sik Ma, Hyung Jin Lee
wiley +1 more source