Title

Polarization-independent and submillisecond response phase modulators using a 90 degrees twisted dual-frequency liquid crystal

Authors

Authors

Y. H. Huang; C. H. Wen;S. T. Wu

Comments

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Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

ONLY MODULATION; POLYMER; FILTER; Physics, Applied

Abstract

A polarization-independent phase modulator using a 90 degrees twisted dual-frequency liquid crystal (DFLC) is demonstrated. In addition to being polarization independent, such a phase modulator exhibits many other advantages such as being scattering-free and having large phase change, low operating voltage, and submillisecond response time. Using a 15 mu m transmissive DFLC cell, the phase shift achieves 1 pi at lambda = 633 nm and the applied voltage is lower than 25 V-rms. Potential applications of such a phase modulator for laser beam steering, tunable-focus lenses, and switchable two-dimensional/three-dimensional liquid crystal displays are foreseeable. (c) 2006 American Institute of Physics.

Journal Title

Applied Physics Letters

Volume

89

Issue/Number

2

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

3

WOS Identifier

WOS:000239793100003

ISSN

0003-6951

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