Title

Electrically switchable Fresnel lens using a polymer-separated composite film

Authors

Authors

Y. H. Fan; H. W. Ren;S. T. Wu

Comments

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Abbreviated Journal Title

Opt. Express

Keywords

LIQUID-CRYSTALS; FABRICATION; ARRAYS; PLATE; Optics

Abstract

A Fresnel lens with electrically-tunable diffraction efficiency while possessing high image quality is demonstrated using a phase-separated composite film (PSCOF). The light scattering-free PSCOF is obtained by anisotropic phase separation between liquid crystal and polymer. Such a lens can be operated below 12 volts and its switching time is reasonably fast (similar to 10 ms). The maximum diffraction efficiency reaches similar to 35% for a linearly polarized light, which is close to the theoretical limit of 41%. (C) 2005 Optical Society of America.

Journal Title

Optics Express

Volume

13

Issue/Number

11

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

4141

Last Page

4147

WOS Identifier

WOS:000229534500028

ISSN

1094-4087

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