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Proceedings Paper

Modeling optical modes of in-plane liquid crystal lasers
Author(s): Jeroen Beeckman; Inge Nys; Kristiaan Neyts
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Paper Abstract

Lasing in liquid crystals has been demonstrated in numerous con gurations and material systems. In most reports the laser light is emitted perpendicular to the liquid crystal layer, using a chiral liquid crystal layer which exhibits a helical structure with a periodicity that gives rise to a stop band in the visible spectrum. The emission of light can then be modeled with one-dimensional models with reasonable accuracy. In the last few years also in-plane lasers have been demonstrated, for example by using a lying helix arrangement. The accurate optical modeling of the light generation in such systems is complex because the materials are optically anisotropic and the con guration should be modeled as two-dimensional. Advanced optical methods are necessary. For these simulations we rely on nite-element calculations of the optical modes in periodic two-dimensional structures including full position dependent anisotropy. The optical modes in a lying helix con guration are calculated as a proof-of-principle for this simulation method. Several interesting features of the optical modes in these structures are found.

Paper Details

Date Published: 19 February 2014
PDF: 9 pages
Proc. SPIE 9004, Emerging Liquid Crystal Technologies IX, 900407 (19 February 2014); doi: 10.1117/12.2044452
Show Author Affiliations
Jeroen Beeckman, Ghent Univ. (Belgium)
Inge Nys, Ghent Univ. (Belgium)
Kristiaan Neyts, Ghent Univ. (Belgium)

Published in SPIE Proceedings Vol. 9004:
Emerging Liquid Crystal Technologies IX
Liang-Chy Chien; Antonio M. Figueiredo Neto; Kristiaan Neyts; Masanori Ozaki, Editor(s)

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