Results 61 to 70 of about 562,479 (274)
Scientific Reports, 2020 The ability of simultaneous polarization filter and wavefront shaping is very important for many applications, especially for polarization imaging. However, traditional methods rely on complex combinations of bulky optical components, which not only ...
Jixiang Cai +4 more
doaj +1 more source
Nonlinear Wavefront Shaping With Nonlocal Metasurfaces
, 2023 We demonstrate wavefront shaping of third-harmonic light generated in nonlocal silicon metasurfaces. The nonlinear geometric phase principle is applied to locally control the phase response of the diffracted third-harmonic light.
Alu A. +3 more
core +1 more source
On‐Chip Photonic Neural Network Architectures
Advanced Optical Materials, EarlyView.This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong +7 more
wiley +1 more source
Time-domain wavefront shaping for secure communication
, 2020 Recently, we applied wavefront shaping techniques to implement quantum-secure readout of a physical unclonable key for authentication [1]. Unfortunately, spatial wavefront shaping is unsuitable for long-distance use. We therefore propose to use wavefront
Pinkse, Pepijn W.H. +1 more
core +1 more source
Large‐Area Flat Optics Color Routing in Tilted Arrays of 2D Semiconductor Nanostripes
Advanced Optical Materials, EarlyView.We develop a scalable flat optics platform exploiting self‐organised ion‐beam sputtering and maskless glancing‐angle deposition to fabricate centimetre‐scale arrays of tilted MoS2 nanostripes. The engineered geometry activates Rayleigh anomalies, guided modes, and Mie resonances, enabling highly directional color routing and enhanced light harvesting ...
Simone Di Marco +7 more
wiley +1 more source
Free-standing bilayer metasurfaces in the visible
Nature CommunicationsMulti-layered meta-optics have enabled complex wavefront shaping beyond their single layer counterpart owing to the additional design variables afforded by each plane.
Ahmed H. Dorrah +3 more
doaj +1 more source
Coherent Absorption Reveals Colors Hidden in a Grey Fabry–Pérot Cavity
Advanced Optical Materials, EarlyView.A dielectric thin film shows colors depending on its thickness; this effect can be used to encode information normally accessible through single‐beam spectroscopy. We developed a method to conceal this kind of information, based on coating the dielectric with a matched conductor, that suppresses the color‐bearing thin‐film resonances.
Giuseppe E. Lio +10 more
wiley +1 more source
Towards enhanced resolution in reflection-mode light scattering microscopy
JPhys PhotonicsOptical microscopy faces challenges in resolution and depth due to light scattering in biological tissues. Conventional transmission-mode light scattering microscopy is typically constrained by a single-pass wavefront correction, incapable of ...
Tong Peng +8 more
doaj +1 more source
Focusing light into scattering media with ultrasound-induced field perturbation
Light: Science & Applications, 2021 A wavefront shaping technique with ultrasound-induced optical field perturbation is demonstrated, which provides an efficient and flexible mechanism to implement noninvasive and addressable optical focusing into scattering media.
Zhongtao Cheng, Lihong V. Wang
doaj +1 more source
Confocal-wavefront-shaping-code
Code for the paper "Non-invasive and noise-robust light focusing using confocal wavefront shaping"
Dror Aizik (18112474)
core +1 more source