Results 21 to 30 of about 6,501 (284)
Single-shot hyperspectral wavefront imaging [PDF]
Nature CommunicationsSingle-shot hyperspectral wavefront sensing is essential for applications like spatio-spectral coupling metrology in high-power laser or fast material dispersion imaging.
Baptiste Blochet +4 more
doaj +2 more sources
Integrated Wavefront Sensing and Processing Method Utilizing Optical Neural Network
PhotonicsWavefront sensors and processors are vital components of adaptive optical (AO) systems, directly impacting the operating bandwidth. As application scenarios become increasingly complex, AO systems are confronted with more extreme atmospheric turbulence ...
Gang Luo +5 more
doaj +2 more sources
Wavefront sensing for objective assessment of vision therapy efficacy: Preliminary results [PDF]
EPJ Web of Conferences, 2023 The aim of this study was to use wavefront sensing to objectively evaluate the effects of vision therapy in subjects with insufficiency (AI) and infacility of accommodation (AINF). Aberrometry was performed with a Shack-Hartmann wavefront aberrometer for
Gomes Jessica +2 more
doaj +1 more source
, 2015 The concepts and considerations that could leads to the development of a novel kind of classes of wavefront sensors inwhich the information is retrieved by the absence of photons rather than from their presence are shown. In quantumoptics the concept of ”sensing” an object without actually having photons interacting with it is already known ...
Ragazzoni, Roberto
openaire +4 more sources
Wavefront sensing at X-ray free-electron lasers [PDF]
Journal of Synchrotron Radiation, 2019 Matthew Seaberg +2 more
exaly +2 more sources
Method for distortion correction of multi-layered surface reconstruction using time-gated wavefront sensing approach [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 In order to estimate the multi-layer surface profile and to detect the inter-layer surfaces defects, gated wavefront sensing approach has been proposed in the previous works [1, 2].
Tan C. S. +4 more
doaj +1 more source
Reference Wave Design for Wavefront Sensing [PDF]
2021 IEEE International Conference on Computational Photography (ICCP), 2021 One of the classical results in wavefront sensing is phase-shifting point diffraction interferometry (PS-PDI), where the phase of a wavefront is measured by interfering it with a planar reference created from the incident wave itself. The limiting drawback of this approach is that the planar reference, often created by passing light through a narrow ...
Wei-Yu Chen +3 more
openaire +1 more source
, 2022 Ground-based high contrast imaging (HCI) and extreme adaptive optics (AO) technologies have advanced to the point of enabling direct detections of gas-giant exoplanets orbiting beyond the snow lines around nearby young star systems.
Jensen-Clem, Rebecca +9 more
core +1 more source
Depth-Resolved Wavefront Aberrations using a Coherence-Gated Shack-Hartmann Wavefront Sensor [PDF]
, 2010 In the present paper we investigate the possibility of narrowing the depth range of a physical Shack - Hartmann (SH) wavefront sensor (WFS) by using coherence gating.
Tuohy, Simon, Podoleanu, Adrian G.H.
core +1 more source
Near-infrared wavefront sensing [PDF]
, 2016 We discuss the advantages of wavefront sensing at near-infrared (IR) wavelengths with low-noise detector technologies that have recently become available.
Rigaut, François +21 more
core +3 more sources