Hartmann–Shack wavefront sensing without a lenslet array using a digital micromirror device

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Title: Hartmann–Shack wavefront sensing without a lenslet array using a digital micromirror device
Authors: Vohnsen, Brian
Carmichael Martins, Alessandra
Qaysi, Salihah
Sharmin, Najnin
Permanent link: http://hdl.handle.net/10197/10079
Date: 27-Jul-2018
Online since: 2019-04-23T11:43:55Z
Abstract: The common Hartmann–Shack wavefront sensor makes use of a lenslet array to sample in-parallel optical wavefronts. Here, we introduce a Hartmann–Shack wavefront sensor that employs a digital micromirror device in combination with a single lens for serial sampling by scanning. Sensing is analyzed numerically and validated experimentally using a deformable mirror operated in closed-loop adaptive optics with a conventional Hartmann–Shack wavefront sensor, as well as with a set of ophthalmic trial lenses, to generate controllable amounts of monochromatic aberrations. The new sensor is free of crosstalk and can potentially operate at kilohertz speed. It offers a reconfigurable aperture that can exclude unwanted parts of the wavefront.
Funding Details: European Commission Horizon 2020
University College Dublin
Type of material: Journal Article
Publisher: Optical Society of America
Journal: Applied Optics
Volume: 57
Issue: 22
Start page: E199
End page: E204
Copyright (published version): 2018 Optical Society of America
Keywords: Hartmann–Shack wavefront sensorAdaptive opticsWavefront sensing
DOI: 10.1364/AO.57.00E199
Other versions: https://www.osapublishing.org/ao/abstract.cfm?uri=ao-57-22-E199
Language: en
Status of Item: Peer reviewed
Appears in Collections:Physics Research Collection

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