Reducing the effect of pixel crosstalk in phase only spatial light modulators
Artikel i vetenskaplig tidskrift, 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

Författare

Martin Persson

Göteborgs universitet

David Engström

Göteborgs universitet

Mattias Goksör

Göteborgs universitet

Optics Express

1094-4087 (ISSN)

Vol. 20 20 22334-22343

Ämneskategorier

Fysik

DOI

10.1364/OE.20.022334