Results 111 to 120 of about 5,531 (246)
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
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Using Spherical-Harmonics Expansions for Optics Surface Reconstruction from Gradients
Sensors, 2017 In this paper, we propose a new algorithm to reconstruct optics surfaces (aka wavefronts) from gradients, defined on a circular domain, by means of the Spherical Harmonics.
Juan Manuel Solano-Altamirano +4 more
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Wavefront reconstruction and mirror surface optimization for adaptive optics [PDF]
, 2014 The problem of wavefront reconstruction is important in high precision optical systems, such as astronomical telescopes, where it is used to estimate the distortion of the collected light caused by the atmosphere and corrected by adaptive optics.
Axtell, Travis W.
core
Hyperspectral tomographic diffractive microscopy: Development and applications
Journal of Microscopy, EarlyView.Abstract Tomographic Diffractive Microscopy (TDM) provides label‐free three‐dimensional imaging of transparent samples with resolution surpassing confocal limits. At IRIMAS, successive instrumental developments since 2009 have enhanced TDM capabilities through transmission, reflection, isotropic, polarisation‐sensitive, and dual‐view configurations ...
Leonardo Pestana Legori +4 more
wiley +1 more source
Accurate and noise-robust wavefront reconstruction with an optical vortex wavefront sensor
Optics ExpressThe term wavefront sensor refers to the entire class of devices capable of measuring the optical wavefront of the incoming beam. Although numerous solutions have been proposed so far, recent advances in structured light have opened new development possibilities through controlled modification of optical field amplitude and phase.
Aleksandra K. Korzeniewska +5 more
openaire +2 more sources
The Journal of Physiology, EarlyView.Abstract figure legend Integrated multimodal platform for panoramic cardiac mapping in isolated heart experiments. On the left, an image of the experimental setup during data acquisition showing a Langendorff‐perfused rabbit heart surrounded by three optical cameras (CAM A, B and C) positioned 120° apart, each coupled with high‐power LEDs for panoramic
Jimena Siles +8 more
wiley +1 more source
PhotonicsAtmospheric turbulence introduces distortions to the wavefront of propagating optical radiation. It causes image resolution degradation in astronomical telescopes and significantly reduces the power density of radiation on the target in focusing ...
Ilya Galaktionov, Vladimir Toporovsky
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The Journal of Physiology, EarlyView.Abstract figure legend Digital heart models of human donor atria with cardiac co‐morbidities revealed that regions with AWT variation, aligned myofibres adjacent to disorganised zones and fibrotic borders promoted the localisation and stability of RDs. AWT had a global influence, whereas fibre orientation and fibrosis exerted chamber‐specific regional ...
Anuradha Kulathilaka +8 more
wiley +1 more source
Wavefront Prediction for Adaptive Optics Without Wavefront Sensing Based on EfficientNetV2-S
PhotonicsAdaptive optics (AO) aims to counteract wavefront distortions caused by atmospheric turbulence and inherent system errors. Aberration recovery accuracy and computational speed play crucial roles in its correction capability. To address the issues of slow
Zhiguang Zhang +6 more
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Chebyshev gradient polynomials for high resolution surface and wavefront reconstruction
, 2018 A new data processing method based on orthonormal rectangular gradient polynomials is introduced in this work. This methodology is capable of effectively reconstructing surfaces or wavefronts with data obtained from deflectometry systems, especially ...
Oh, Chang Jin +5 more
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