Authors

Y. Huang; T. H. Lin; Y. Zhou;S. T. Wu

Comments

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Abbreviated Journal Title

Opt. Express

Keywords

CHOLESTERIC LIQUID-CRYSTALS; BAND-GAP; EMISSION; Optics

Abstract

We demonstrate a method for enhancing the laser efficiency by stacking multiple dye-doped chiral polymer films. No laser emission was observed from a single 8 mu m film. By stacking two films together, the laser efficiency is dramatically enhanced. Further increasing the number of stacked films, the output laser power is further increased. It is also observed that the output laser power in the forward direction is almost the same as that in the backward for the two- and three-layered films. However, in the six-layered film the output laser power is much stronger in the backward direction than the forward one. This is due to the absorption of the laser dyes and the distributed feedback in the chiral polymer films.

Journal Title

Optics Express

Volume

14

Issue/Number

23

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

11299

Last Page

11303

WOS Identifier

WOS:000242325400037

ISSN

1094-4087

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