Shack–hartmann wavefront sensor

Results 101 to 110 of about 6,169 (204)

Shack-Hartmann and Interferometric Hybrid Wavefront Sensor [PDF]

, 2011
This document reports results of wave-optics simulations used to test the performance of a hybrid wavefront sensor designed to combine the self-referencing interferometer and Shack-Hartmann wavefront sensors in an optimal way.
Ellis, Troy R.
core +1 more source

Wavefront Reconstruction by its Slopes via Physics-Informed Neural Networks [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The problem of wavefront reconstruction by its slopes, related to the the phase recovery of a light wave based on Shack-Hartmann sensor data, is considered.
T. E. Romanenko +3 more
doaj +1 more source

Microlens Array-Based Beam Profile and Wavefront Sensor With Physical Constraint Learning

IEEE Photonics Journal
The 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

Differential Shack-Hartman Curvature Sensor [PDF]

, 2008
A differential Shack-Hartmann curvature sensor for measuring a curvature including principal curvatures and directions of a wavefront. The curvature sensor includes a Shack-Hartmann sensor with an input beam and an optical element to split said input ...
Rolland, Jannick, Zou, Weiyao
core +2 more sources

Multi-Spectral and Single-Shot Wavefront Detection Technique Based on Neural Networks

Photonics
Conventional wavefront sensors face challenges when detecting frequency-domain information. In this study, we developed a high-precision, and fast multi-spectral wavefront detection technique based on neural networks.
Xunzheng Li +4 more
doaj +1 more source

Tolerance analysis method for Shack-Hartmann sensors using a variable phase surface [PDF]

, 2006
Even after good calibration, the measurement accuracy of a Shack-Hartmann sensor can be affected by the fabrication and alignment tolerances of the wavefront sensing optical system.
Curatu, Costin, Curatu, George, Rolland, Jannick +2 more
core +1 more source

Method for testing freeform surfaces based on a Shack-Hartmann sensor with plane wavefront scanning and stitching