Temperature dependent photoinduced change of third harmonic generation in azo copolymer thin films

Chia-Chen Hsu; Jian-Hung Lin; Tzer-Hsiang Huang; Kenji Harada

doi:10.1117/12.451930

18 December 2002 Temperature dependent photoinduced change of third harmonic generation in azo copolymer thin films

Chia-Chen Hsu, Jian-Hung Lin, Tzer-Hsiang Huang, Kenji Harada

Proceedings Volume 4798, Linear and Nonlinear Optics of Organic Materials II; (2002) https://doi.org/10.1117/12.451930
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Temperature effect on photoinduced third harmonic generation (THG) variation of an azo copolymer and an azo guest-host polymer is studied at two different temperatures. At higher temperature, both angular hole burning (AHB) and molecule angular redistribution (AR) motions are smaller due to the decrease of cis-trans thermal relaxation time and cis population. Smaller photoinduced THG change is observed in both samples at higher temperature. THG recovery experiment results show copolymer thin films pumped at high temperature have the best photoinduced THG variation stability after turning off the pump beam.

Citation Download Citation

Chia-Chen Hsu, Jian-Hung Lin, Tzer-Hsiang Huang, and Kenji Harada "Temperature dependent photoinduced change of third harmonic generation in azo copolymer thin films", Proc. SPIE 4798, Linear and Nonlinear Optics of Organic Materials II, (18 December 2002); https://doi.org/10.1117/12.451930

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