Reducing the effect of pixel crosstalk in phase only spatial light modulators
Journal article, 2012

A method for compensating for pixel crosstalk in liquid crystal based spatial light modulators is presented. By modifying a commonly used hologram generating algorithm to account for pixel crosstalk, the intensity errors in obtained diffraction spot intensities are significantly reduced. We also introduce a novel method for characterizing the pixel crosstalk in phase-only spatial light modulators, providing input for the hologram generating algorithm. The methods are experimentally evaluated and an improvement of the spot uniformity by more than 100% is demonstrated for an SLM with large pixel crosstalk.

generation

holographic optical tweezers

kinoforms

diffraction efficiency

Author

Martin Persson

University of Gothenburg

David Engström

University of Gothenburg

Mattias Goksör

University of Gothenburg

Published in

Optics Express

1094-4087 (ISSN) 10944087 (eISSN)

Vol. 20 Issue 20 p. 22334-22343

Categorizing

Subject Categories (SSIF 2011)

Physical Sciences

Identifiers

DOI

10.1364/OE.20.022334

More information

Created

10/10/2017