Results 131 to 140 of about 2,844,522 (254)
Experiences with porting and modelling wavefront algorithms on many-core architectures [PDF]
, 2010 We are currently investigating the viability of many-core architectures for the acceleration of wavefront applications and this report focuses on graphics processing units (GPUs) in particular.
Pennycook, Simon J. +3 more
core +1 more source
Wavefront Shaping for Optimal Extinction of Focused Light by Individual Nanoscatterers
Laser &Photonics Reviews, EarlyView.Wavefront shaping enables near‐complete optical extinction by nanoscatterers separated from a planar reflector. Time‐reversed emission profiles provide optimal illumination conditions, yielding 70% extinction from a single plasmonic nanoparticle and up to 90% from sub‐wavelength nanoparticle clusters, offering a promising route to efficient in‐ and out‐
Nick Feldman +5 more
wiley +1 more source
Wavefront-Constrained Passive Obscured Object Detection
Accurately localizing and segmenting obscured objects from faint light patterns beyond the field of view is highly challenging due to multiple scattering and medium-induced perturbations.
Y Ouyang (13686946) +9 more
core +2 more sources
Microlens Array-Based Beam Profile and Wavefront Sensor With Physical Constraint Learning
IEEE Photonics JournalThe beam profile and wavefront characteristics of laser beams are essential for numerous laser applications, including micromachining and microfabrication.
Feng-Chun Hsu +3 more
doaj +1 more source
Wavefront measurement using computational adaptive optics. [PDF]
J Opt Soc Am A Opt Image Sci Vis, 2018 South FA +5 more
europepmc +1 more source
Transmission‐Mode Silicon‐Rich Nitride Mie‐Void Metasurfaces in the Visible
Laser &Photonics Reviews, EarlyView.Transmission‐mode Mie‐void metasurfaces are demonstrated in silicon‐rich nitride, where localized void resonances hybridize with slab‐guided and Fabry–Pérot‐like modes in a finite film, producing a quantified avoided crossing between coupled modes. Controlled void depth tunes the visible transmission spectrum, enabling structural color and spatial ...
Oren Goldberg, Noa Mazurski, Uriel Levy
wiley +1 more source
Weak Measurement for Characterizing Effective Jones Matrices of Phase Gradient Metasurfaces
Laser &Photonics Reviews, EarlyView.Spin dependent deflection from a PB phase gradient metasurface is converted by two dimensional weak measurement into a centroid map, where the amplitude ratio, phase difference, and phase gradient produce distinct spatial features. These effective parameters are then retrieved directly from the centroid response.
Peng Tang +8 more
wiley +1 more source
Wavefront Sensor and Method of Reconstructing Distorted Wavefronts
, 2016 A wavefront sensor includes a mask and a sensor utilized to capture a diffraction pattern generated by light incident to the mask. A reference image is captured in response to a plane wavefront incident on the mask, and another measurement image is ...
Wang, Congli +3 more
core
Laser &Photonics Reviews, EarlyView.A polarization‐dependent liquid–crystal spatial light modulator is used to generate coaxial double‐focus laser beams with independently tunable focal separation and intensity. Applied to silicon, this configuration enables counterpropagating pulse interactions using a single focusing element, enhancing nonlinear excitation and achieving near‐critical ...
Niladri Ganguly +2 more
wiley +1 more source
Millimeter‐Scale Single‐Layer RGB Achromatic Metalens via Time‐Simultaneity‐Free Design
Laser &Photonics Reviews, EarlyView.This study proposes a time‐simultaneity‐free (TSF) approach that circumvents the size‐bandwidth trade‐off in multi‐wavelength metasurfaces. By strategically abandoning time‐simultaneity via wavelength‐dependent DC phase biases, a single‐layer, polarization‐insensitive RGB achromatic metalens is scaled to 1‐millimeter diameter.
Atsushi Hasegawa +7 more
wiley +1 more source