Title

Doubling the optical efficiency of a chiral liquid crystal laser using a reflector

Authors

Authors

Y. Zhou; Y. H. Huang; A. Rapaport; M. Bass;S. T. Wu

Comments

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Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

BAND; Physics, Applied

Abstract

A simple method for doubling the laser emission efficiency of Nd:yttrium-aluminum-garnet pumped cholesteric liquid crystal (CLC) photonic band edge lasers is demonstrated. By adding a mirror or a CLC reflector behind the dye-doped CLC cell, the lasing intensity is nearly doubled. For the mirror reflector, due to the mixing of right-handed and left-handed circular polarizations, the output laser is basically unpolarized. However, for the CLC reflector, a partially coherent laser can be built in which either right-handed or left-handed circularly polarized laser could dominate the output, depending on the handedness of the cholesteric structure. (c) 2005 American Institute of Physics.

Journal Title

Applied Physics Letters

Volume

87

Issue/Number

23

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

3

WOS Identifier

WOS:000233723200007

ISSN

0003-6951

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