Hartmann-Shack wavefront sensing without a lenslet array using a digital micromirror device.
Appl Opt
; 57(22): E199-E204, 2018 Aug 01.
Article
en En
| MEDLINE
| ID: mdl-30117885
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.
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MEDLINE
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En
Revista:
Appl Opt
Año:
2018
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Article