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Proceedings Paper

Utilization of elliptically polarized light for phase-only modulation by twisted nematic liquid crystal spatial light modulators
Author(s): Makoto Yamauchi
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Paper Abstract

Liquid crystal spatial light modulators (LCSLMs) are promising devices for real-time holography. We are trying to use a twisted nematic LCSLM as a phase hologram. In previous years, only linearly polarized light has been applied to use the device as a phase-only modulator. Recently, eigenstates of the device were studied using Jones matrix calculus. The eigenvectors of the device represents elliptically polarized light, and the negative eigenvector indicates the preferable performance for phase-only modulation. In this paper, we generalize the calculus by introducing a polar coordinate system and angular parameters. This simplifies the analysis of device characteristics and makes it easier. It also enables us to discuss more precisely the intensity transmission and phase delay caused by the device. Finally, we present the optimum eigenvector for phase modulation in terms of the birefringence range of the LCSLM.

Paper Details

Date Published: 4 June 2001
PDF: 10 pages
Proc. SPIE 4296, Practical Holography XV and Holographic Materials VII, (4 June 2001); doi: 10.1117/12.429449
Show Author Affiliations
Makoto Yamauchi, Mechanical Engineering Lab. (Japan)

Published in SPIE Proceedings Vol. 4296:
Practical Holography XV and Holographic Materials VII
Stephen A. Benton; Sylvia H. Stevenson; T. John Trout; Sylvia H. Stevenson; T. John Trout, Editor(s)

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