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Proceedings Paper

One- and two-dimensional liquid crystal structures for lasing applications
Author(s): Inge Nys; Jeroen Beeckman; Kristiaan Neyts
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Paper Abstract

Liquid crystal (LC) lasers have gained a lot of research interest in the last decade. Especially out-of-plane emitting chiral nematic liquid crystal (CLC) lasers have been studied extensively. These regular CLC lasers have a one-dimensional (1D) structure and the active cavity length is inherently limited. By using CLCs in two- and three-dimensional structures, the flexibility and applicability of the laser structures can be strongly enhanced. In this paper we focus on 2D in-plane emitting CLC lasers with a lying helix structure. We elaborate further on different techniques to obtain the lying helix structure and we analyze the lasing properties and compare these to regular 1D out-of-plane emitting CLC and NLC lasers. Both differences in emission spectrum, laser threshold, slope efficiency and maximal output energy are discussed.

Paper Details

Date Published: 5 September 2015
PDF: 7 pages
Proc. SPIE 9565, Liquid Crystals XIX, 956513 (5 September 2015); doi: 10.1117/12.2188003
Show Author Affiliations
Inge Nys, Ghent Univ. (Belgium)
Jeroen Beeckman, Ghent Univ. (Belgium)
Kristiaan Neyts, Ghent Univ. (Belgium)

Published in SPIE Proceedings Vol. 9565:
Liquid Crystals XIX
Iam Choon Khoo, Editor(s)

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