Direct wavefront sensing from extended objects: a general sensor
Abstract
Wavefront sensing from an extended object is a challenging task since the phase to be sensed is disturbed by the phase generated from the structure of the extended object. To address this problem, a general wavefront sensor was proposed. The hardware of the sensor consists of a field lens, a collimating lens, a lenslet array, and a camera. The idea for its algorithm is to eliminate the phase caused by the extended object and reconstruct the point spread function through each lenslet. As a result, the scenario of wavefront sensing from an extended object has been converted to the conventional one from a point source. Numerical simulations and experiments both verify the feasibility and the accuracy of the proposed sensor.
Cite
@article{arxiv.2101.05445,
title = {Direct wavefront sensing from extended objects: a general sensor},
author = {Changwei Li and Yanting Lu and Sijiong Zhang},
journal= {arXiv preprint arXiv:2101.05445},
year = {2021}
}
Comments
11 pages, 10 figures; to be submitted