Results 131 to 140 of about 6,501 (284)
Wavefront sensing with a gradient phase filter
Optics Communications20 pages, 8 ...
Hénault, François +4 more
openaire +3 more sources
Metasurface‐Based Polarization‐Controlled Generation of 128‐Dimensional Vector Vortex Combs
Laser &Photonics Reviews, EarlyView.The generation and continuous control of 128‐dimensional vector vortex combs using a single metasurface is reported. This work creates a class of structured light that uniquely integrates ultrahigh dimensionality with vector properties, and represents a crucial step toward on‐chip, reconfigurable generators for ultrahigh‐dimensional vector structured ...
Jiaqi Wang, Wenxi Wang, Wen Chen
wiley +1 more source
Shack-Hartmann Wavefront Sensing of Ultrashort Optical Vortices. [PDF]
Sensors (Basel), 2021 Pandey AK +4 more
europepmc +1 more source
Characterization of the digital holographic wavefront sensor
, 2014 Paper 92421T, 14 S.Correction of atmospheric effects on the propagation of laser light can be achieved with adaptive optics (AO) by relying on adequate wavefront sensors. For free-space laser communications and for tracking of high-speed airborne objects,
Gladysz, Szymon +8 more
core +1 more source
Laser &Photonics Reviews, EarlyView.An etchless lithium niobate (LN) metasurface with a slanted periodic TiO2 grating enables efficient and narrowband second‐harmonic generation (SHG) thanks to the light confinement in the LN film granted by quasi‐bound‐state‐in‐the‐continuum (q‐BIC) modes.
Yaping Hou +10 more
wiley +1 more source
Wavefront Reconstruction for a Holographic Modal Wavefront Sensor Based on Extreme Learning Machine
IEEE Photonics JournalThe intermodal crosstalk effect as well as the limited dynamic range of holographic modal wavefront sensors (HMWFSs) significantly affect their wavefront-sensing accuracy.
Han Cao +5 more
doaj +1 more source
Wavefront error sensing for LDR
, 1988 Wavefront sensing is a significant aspect of the LDR control problem and requires attention at an early stage of the control system definition and design.
Glavich, T. A., Tubbs, Eldred F.
core
Interleaved Diffractive Networks for Information Transfer Through Random Diffusers
Laser &Photonics Reviews, EarlyView.This work presents a cascaded diffractive optical network that enables information transfer through random, unknown diffusers using passive, interleaved structured layers that mitigate scattering without digital computation. A hybrid optical‐digital version further improves robustness and reconstruction fidelity under distortions, with both simulations
Yuhang Li +4 more
wiley +1 more source
Angle-based wavefront sensing enabled by the near fields of flat optics. [PDF]
Nat Commun, 2021 Yi S +5 more
europepmc +1 more source
High speed optical wavefront sensing with low cost fpgas
, 2018 This paper outlines a study into deployment of a parallel processing scheme on an FPGA to meet the needs of high bandwidth processing in adaptive optics wavefront sensing.
Morgan, F. +3 more
core