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Proceedings Paper

Fast and accurate techniques for measuring the complex transmittance of liquid crystal light valves
Author(s): Gerhard Bader; Roland Buerkle; Ernst H. Lueder; Norbert Fruehauf; Christof Zeile
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Paper Abstract

A highly accurate measurement technique has been developed and applied for characterization of the complex transmittance of liquid crystal light valves (LC-LV). The measurement setup is based on a two-beam interference with partially coherent light. An arc lamp light source enables measurements over a large range of wavelengths. We propose a new Fourier transform interference pattern evaluation technique with a high signal-to-noise ratio. Calculations are sped up by FFT algorithms. Measurement results of the complex transmittance are shown for a twisted nematic and a Freederickzs liquid crystal light valve, built in our laboratory.

Paper Details

Date Published: 11 April 1997
PDF: 12 pages
Proc. SPIE 3015, Liquid Crystal Materials, Devices, and Applications V, (11 April 1997); doi: 10.1117/12.271384
Show Author Affiliations
Gerhard Bader, Univ. Stuttgart (Germany)
Roland Buerkle, Univ. Stuttgart (Germany)
Ernst H. Lueder, Univ. Stuttgart (Germany)
Norbert Fruehauf, Univ. Stuttgart (Germany)
Christof Zeile, Univ. Stuttgart (Germany)


Published in SPIE Proceedings Vol. 3015:
Liquid Crystal Materials, Devices, and Applications V
Ranganathan Shashidhar, Editor(s)

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