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.


holographic optical tweezers


diffraction efficiency


Martin Persson

University of Gothenburg

David Engström

University of Gothenburg

Mattias Goksör

University of Gothenburg

Optics Express

1094-4087 (ISSN)

Vol. 20 20 22334-22343

Subject Categories

Physical Sciences



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