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Optical Engineering

Simple technique for determining the extraordinary axis direction for twisted-nematic liquid-crystal spatial light modulators
Author(s): Jeffrey A. Davis; Philbert S. Tsai; Kevin D'Nelly; Ignacio Soriano Moreno
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Paper Abstract

We report a simple technique for determining the orientation of the extraordinary axis at the input side of a twisted-nematic liquid crystal spatial light modulator. In this approach, we illuminate the display with linearly polarized light and examine the diffraction pattern as we change the external voltage applied to the display. When the incident light is polarized along the extraordinary axis, we see changes in the diffraction pattern as a function of applied voltage. Experimental measurements and theory are presented.

Paper Details

Date Published: 1 May 1999
PDF: 4 pages
Opt. Eng. 38(5) doi: 10.1117/1.602052
Published in: Optical Engineering Volume 38, Issue 5
Show Author Affiliations
Jeffrey A. Davis, San Diego State Univ. (United States)
Philbert S. Tsai, San Diego State Univ. (United States)
Kevin D'Nelly, San Diego State Univ. (United States)
Ignacio Soriano Moreno, Univ. Miguel Hernandez (Spain)


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