Results 21 to 30 of about 2,674,389 (338)

Jitter-Robust Phase Retrieval Wavefront Sensing Algorithms [PDF]

open access: yesSensors, 2022
Phase retrieval wavefront sensing methods are now of importance for imaging quality maintenance of space telescopes. However, their accuracy is susceptible to line-of-sight jitter due to the micro-vibration of the platform, which changes the intensity ...
Liang Guo   +6 more
doaj   +2 more sources

Research on Wavefront Sensing Applications Based on Photonic Lanterns [PDF]

open access: yesSensors
The Photonic Lantern (PL) is a novel fiber optic device emerging in wavefront sensing, which converts multimode fiber light fields into single-mode fields.
Zhengkang Zhao   +10 more
doaj   +2 more sources

Deep learning wavefront sensing and aberration correction in atmospheric turbulence

open access: yesPhotoniX, 2021
Deep learning neural networks are used for wavefront sensing and aberration correction in atmospheric turbulence without any wavefront sensor (i.e. reconstruction of the wavefront aberration phase from the distorted image of the object).
Kaiqiang Wang   +9 more
semanticscholar   +3 more sources

Single-shot, reference-less computational wavefront sensing for complex optical fields [PDF]

open access: yesLight: Science & Applications
Optical waves carry rich information in their spatial profiles and topological structures. Characterization of optical wavefronts is a key prerequisite in broad applications across fundamental research and industrial technologies.
Yunhui Gao, Liangcai Cao, Din Ping Tsai
doaj   +2 more sources

Shack-Hartmann Wavefront Sensing of Ultrashort Optical Vortices. [PDF]

open access: yesSensors (Basel), 2021
Light beams carrying Orbital Angular Momentum (OAM), also known as optical vortices (OV), have led to fascinating new developments in fields ranging from quantum communication to novel light–matter interaction aspects. Even though several techniques have
Pandey AK   +4 more
europepmc   +2 more sources

Compressive Wavefront Sensing with Weak Values [PDF]

open access: yesOptics Express, 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 ...
Howell, John C.   +2 more
core   +6 more sources

Single‐Shot Wavefront Sensing with Nonlocal Thin Film Optical Filters

open access: yesLaser and Photonics Reviews, 2023
Conventional wavefront sensors suffer from the fundamental limitation of the space‐bandwidth product and have a trade‐off between their spatial sampling interval and dynamic range.
Liu Li   +5 more
semanticscholar   +3 more sources

Atmospheric Turbulence Aberration Correction Based on Deep Learning Wavefront Sensing [PDF]

open access: yesSensors, 2023
In this paper, research was conducted on Deep Learning Wavefront Sensing (DLWS) neural networks using simulated atmospheric turbulence datasets, and a novel DLWS was proposed based on attention mechanisms and Convolutional Neural Networks (CNNs).
Jiang You   +5 more
doaj   +2 more sources

Moment analysis of focus-diverse point spread functions for modal wavefront sensing of uniformly illuminated circular-pupil systems [PDF]

open access: green, 2011
A new concept of using focus-diverse point spread functions (PSFs) for modal wavefront sensing (WFS) is explored. This is based on relatively straightforward image moment analysis of measured PSFs, which differentiates it from other focal-plane wavefront
Lee, Hanshin
core   +2 more sources

Underwater Turbulence Detection Using Gated Wavefront Sensing Technique [PDF]

open access: yesSensors, 2018
Laser sensing has been applied in various underwater applications, ranging from underwater detection to laser underwater communications. However, there are several great challenges when profiling underwater turbulence effects.
Ying Bi   +4 more
doaj   +2 more sources

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