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

Andrii Varanytsia; Peter Palffy-Muhoray

doi:10.1117/12.2027482

12 September 2013 Thermal degradation of the distributed-feedback cavity in cholesteric liquid crystal lasers

Proceedings Volume 8828, Liquid Crystals XVII; 88281F (2013) https://doi.org/10.1117/12.2027482
Event: SPIE Organic Photonics + Electronics, 2013, San Diego, California, United States

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.

Citation Download Citation

Andrii Varanytsia and Peter Palffy-Muhoray "Thermal degradation of the distributed-feedback cavity in cholesteric liquid crystal lasers", Proc. SPIE 8828, Liquid Crystals XVII, 88281F (12 September 2013); https://doi.org/10.1117/12.2027482

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