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Proceedings Paper

Thermal degradation of the distributed-feedback cavity in cholesteric liquid crystal lasers
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Paper Abstract

In this work, cholesteric liquid crystal (CLC) laser emission from two different liquid crystal hosts doped with the same laser dye was studied. For both systems, the lasing thresholds were measured and the energy output was studied at different pump energies and at different temperatures. When the pump energy was increased, a shift of lasing wavelength and a decrease of emission in one sample were observed. We argue that this phenomenon is associated with thermal degradation of the distributed-feedback cavity caused by laser heating and the temperature induced changes of the cholesteric pitch.

Paper Details

Date Published: 12 September 2013
PDF: 6 pages
Proc. SPIE 8828, Liquid Crystals XVII, 88281F (12 September 2013); doi: 10.1117/12.2027482
Show Author Affiliations
Andrii Varanytsia, Kent State Univ. (United States)
Peter Palffy-Muhoray, Kent State Univ. (United States)

Published in SPIE Proceedings Vol. 8828:
Liquid Crystals XVII
Iam Choon Khoo, Editor(s)

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