Results 111 to 120 of about 82,170 (356)
Digitized Phase‐Change Material Heterostack for Transmissive Diffractive Optical Neural Network
Advanced Photonics Research, EarlyView.A phase‐change‐material‐based digitized heterostack is experimentally demonstrated and theoretically analyzed for future energy‐efficient, fast reconfigured, and compact transmissive diffractive optical neural networks. All‐optical and fully reconfigurable transmissive diffractive optical neural network (DONN) architectures emerge as high‐throughput ...
Ruiyang Chen +3 more
wiley +1 more source
Compressive Wavefront Sensing with Weak Values [PDF]
, 2014 We demonstrate a wavefront sensor based on the compressive sensing, single-pixel camera. Using a high-resolution spatial light modulator (SLM) as a variable waveplate, we weakly couple an optical field's transverse-position and polarization degrees of freedom.
arxiv +1 more source
Advanced Photonics Research, EarlyView.This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu +5 more
wiley +1 more source
Hyperbolic Metamaterial Devices for Wavefront Manipulation
Laser & Photonics reviews, 2018 Metasurfaces have shown great potential to reshape the wavefront of electromagnetic (EM) waves, but transmissive meta‐devices face challenges of low‐efficiency and/or fabrication complexities.
X. Yin +12 more
semanticscholar +1 more source
Advanced Photonics Research, EarlyView.Photonic resonances within a dielectric metasurface are investigated using photoelectron emission microscopy (PEEM) and finite‐difference time‐domain simulations. An electron inelastic mean free path of 35 ± 10 nm is extracted from comparisons between microscopy and simulations.
Andrew R. Kim +9 more
wiley +1 more source
Astronomical Telescopes + Instrumentation, 2018 The Fast Linearized Coronagraph Optimizer (FALCO) is an open-source toolbox of routines for coronagraphic focal plane wavefront correction. The goal of FALCO is to provide a free, modular framework for the simulation or testbed operation of several ...
A. E. Riggs +5 more
semanticscholar +1 more source
Precision Construction of Chiral Optical Fields with Nine Controllable Degrees of Freedom
Advanced Photonics Research, EarlyView.Chiral optical fields (COFs) offer multiple controllable degrees of freedom (DOFs), enabling applications in optical tweezers, manufacturing, and encryption. However, achieving precise sidelobe control remains a challenge. This work introduces a modular multilayer annular phase plate to fine‐tune COFs by manipulating nine DOFs.
Duo Deng +4 more
wiley +1 more source
APL Photonics, 2018 Multiple light scattering has been regarded as a barrier in imaging through complex media such as biological tissues. Owing to recent advances in wavefront shaping techniques, optical imaging through intact biological tissues without invasive procedures ...
Jung‐Hoon Park +4 more
semanticscholar +1 more source
Three‐Channel Wavefront Shaping Using Non‐Interleaved Spin‐Multiplexed Plasmonic Metasurfaces
Advanced Science, EarlyView.A versatile non‐interleaved plasmonic metasurface platform has been developed using quarter‐wave plate meta‐atoms for independent and simultaneous phase modulation of both co‐ and cross‐polarized circularly polarized waves. Three proof‐of‐concept designs have been validated in the near‐infrared: a beam deflector with three distinct reflection angles, a
Xingling Pan +6 more
wiley +1 more source
ОфтальмохирургияRelevance. This study presents a comparative analysis of the effectiveness of toric intraocular lens (IOL) with a wavefront shaping mechanism implantation in cataract surgical treatment in patients after penetrating keratoplasty (PKP). Purpose.
D.A. Khvan, G.A. Fedyashev
doaj +1 more source