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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 11 — Apr. 10, 2011
  • pp: 1593–1600

Full-field phase modulation characterization of liquid-crystal spatial light modulator using digital holography

Kapil Dev, Vijay Raj Singh, and Anand Asundi  »View Author Affiliations

Applied Optics, Vol. 50, Issue 11, pp. 1593-1600 (2011)

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A direct quantitative phase measurement method to characterize intrinsic phase modulation from an entire active area of transmissive twisted-nematic liquid-crystal spatial light modulator (TN-LCSLM) is presented using digital holography (DH). The change in birefringence of liquid crystal material with respect to addressed gray scale produces phase modulation of wavefront transmitted through TN-LCSLM. Existing methods for phase modulation characterization of LCSLM mainly provides point measurement on its total active region. In this paper, the DH method is evolved to extract quantitative phase information of an entire active area from a single digital hologram formed using the complex wavefront transmitted through TN-LCSLM.

© 2011 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(160.3710) Materials : Liquid crystals
(090.1995) Holography : Digital holography
(070.6120) Fourier optics and signal processing : Spatial light modulators

ToC Category:

Original Manuscript: September 28, 2010
Revised Manuscript: February 10, 2011
Manuscript Accepted: February 10, 2011
Published: April 7, 2011

Kapil Dev, Vijay Raj Singh, and Anand Asundi, "Full-field phase modulation characterization of liquid-crystal spatial light modulator using digital holography," Appl. Opt. 50, 1593-1600 (2011)

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