Results 161 to 170 of about 30,411 (268)

Geomagnetic Field Influence on Trans‐Ionospheric HF Wave Propagation via Topside Z–to–O Mode Conversion

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Satellite observations during ionospheric modification experiments have reported trans‐ionospheric high‐frequency (HF) wave propagation even when the pump frequency lies below the peak plasma frequency. Such behavior is often attributed to large‐scale density irregularities that locally permit ordinary‐mode (O‐mode) propagation, but this does ...
Danish Naeem, Dong‐Hun Lee, Kihong Kim
wiley   +1 more source

Enhanced Lateral Resolution Multiplane Imaging via Dynamic SLM and Microsphere Lens Control. [PDF]

Sensors (Basel)
Zhai Z, Liu M, Lei Z, Xiong Z, Liu D, Feng W, Lv Q, Zhu C.   +7 more
europepmc   +1 more source

Dynamic Generation of Spatially Variable Vector Beams Using Cascaded Moiré Metasurfaces

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
A three‐layer cascaded moiré metasurface dynamically generates vector beams with tunable polarization order and controllable lateral focal positions. Relative rotation of the first two layers adjusts the conjugate OAM components that form the vector beam, whereas the third layer steers its focus across the transverse plane, preserving the dominant OAM ...
Siyu Guo, Zhongzhu Liang, Zhe Wu, Xintong Wei, Shijia Zhu, Junying Liu, Siyu Liu, Qiaohan Liu, Xiaoyan Shi, Fuming Yang, Haiyang Xu   +10 more
wiley   +1 more source

Reconstruction of molecular vibrational spectra from light-molecular vibration coupling spectra using deep learning. [PDF]

Anal Sci
Nishijima Y, Imai S, Maeda H.
europepmc   +1 more source

Inverse‐Designed Nanophotonic Structures for On‐Chip Excitation and Broadband Emission Extraction in Diamond Quantum Spin Sensing

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
Inverse‐designed nanophotonic structures on a foundry‐compatible silicon nitride chip enable efficient in‐plane green excitation and broadband red emission extraction from diamond nitrogen‐vacancy centers. A compact emitter triples the guided optical power, while a directional coupler routes ∼80% of the fluorescence to detection, advancing miniaturized
Yuqing Zhou, Tsuyoshi Nomura, Yuki Sato, Makoto Nakai, Paul D. Schmalenberg, Ercan M. Dede   +5 more
wiley   +1 more source

Visible-wavelength vectorial holography based on an MIM metasurface. [PDF]

Discov Nano
Zhou Y, Miao R, Geng Z, Chen MK.
europepmc   +1 more source

Silicon Photonic Beam Steerer Based on Metalens Focal Plane Array

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
A silicon photonic beam steerer based on a metalens focal plane array (FPA) monolithically integrates the collimation lens on‐chip while enabling blind‐spot‐free continuous beam steering. Thermo‐optic prisms provide continuous fine‐tuning and more than double the number of resolvable points.
Chung‐Yu Hsu, Ping‐Yen Hsieh, Hsun‐Sung Chiu, Li‐Jun Tung, Chieh‐Chih Yu, Ko‐Chi Chen, Yu‐Heng Hong, Hao‐Chung Kuo, Chi‐Wai Chow, You‐Chia Chang   +9 more
wiley   +1 more source

Near-Unity Chiral Lasing Enabled by Quasi-Bound States in the Continuum. [PDF]

Adv Mater
Mendoza-Carreño J, Pérez LA, De Galarreta CR, Rouanet T, Alonso MI, Mihi A.   +5 more
europepmc   +1 more source

Vectorial Diffractive Neural Metasurfaces for Multiplexed Synthesis of Optical Skyrmions

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
A three‐layer Jones‐matrix‐based vectorial diffractive neural network enables compact, passive, and multiplexed synthesis of optical skyrmions and bimerons. By mapping distinct Gaussian‐beam input channels to coaxial orbital‐angular‐momentum and polarization states, the device generates up to 16 topological vector textures with high mode purity, robust
Tianqu Chen, Xu Xing, Mingfeng Xu, Yong Yu, Xi Tang, Yinghui Guo, Fei Zhang, Mingbo Pu, Xiangang Luo   +8 more
wiley   +1 more source

Extreme-Thickness Meta-Membrane for Controlling Terahertz Vectorial Beams. [PDF]

Adv Sci (Weinh)
Song Y, Xu Y, Xu Y, Liu Y, Ma S, He Q, Wang Z, Zhou L.   +7 more
europepmc   +1 more source