Optical rotatory power of 90°twisted nematic liquid crystals

Shin Tson Wu; Uzi Efron; Laverne D. Hess

doi:10.1063/1.94944

Optical rotatory power of 90°twisted nematic liquid crystals

Shin Tson Wu, Uzi Efron, Laverne D. Hess

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24 Scopus citations

Abstract

A technique was developed and used to measure the rotatory power of 90°twisted nematic liquid crystals in the visible and infrared spectral regions. Experimental results for two liquid crystal mixtures, BDH-E7 and ZLI-1132, are in very good agreement with theoretical calculations for a wide spectral range and for different liquid crystal thicknesses. A quantitative relationship between liquid crystal birefringence, wavelength, and cell thickness was derived for use in the design of IR liquid crystal light valves with high contrast ratios and minimum response times.

Original language	English
Pages (from-to)	842-844
Number of pages	3
Journal	Applied Physics Letters
Volume	44
Issue number	9
DOIs	https://doi.org/10.1063/1.94944
State	Published - 1 Dec 1984
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.94944

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abstract = "A technique was developed and used to measure the rotatory power of 90°twisted nematic liquid crystals in the visible and infrared spectral regions. Experimental results for two liquid crystal mixtures, BDH-E7 and ZLI-1132, are in very good agreement with theoretical calculations for a wide spectral range and for different liquid crystal thicknesses. A quantitative relationship between liquid crystal birefringence, wavelength, and cell thickness was derived for use in the design of IR liquid crystal light valves with high contrast ratios and minimum response times.",

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AU - Efron, Uzi

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N2 - A technique was developed and used to measure the rotatory power of 90°twisted nematic liquid crystals in the visible and infrared spectral regions. Experimental results for two liquid crystal mixtures, BDH-E7 and ZLI-1132, are in very good agreement with theoretical calculations for a wide spectral range and for different liquid crystal thicknesses. A quantitative relationship between liquid crystal birefringence, wavelength, and cell thickness was derived for use in the design of IR liquid crystal light valves with high contrast ratios and minimum response times.

AB - A technique was developed and used to measure the rotatory power of 90°twisted nematic liquid crystals in the visible and infrared spectral regions. Experimental results for two liquid crystal mixtures, BDH-E7 and ZLI-1132, are in very good agreement with theoretical calculations for a wide spectral range and for different liquid crystal thicknesses. A quantitative relationship between liquid crystal birefringence, wavelength, and cell thickness was derived for use in the design of IR liquid crystal light valves with high contrast ratios and minimum response times.

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Optical rotatory power of 90°twisted nematic liquid crystals

Abstract

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