Photoisomerization-induced change of nonlinear absorption in azo-dye doped polymethylmethacrylate thin films

Content Provider	Semantic Scholar
Author	Liu, Sean Lin, Jian Hung Lin, Jin Horn Churikov, Victor M. Lin, Jiann T. Huang, Tzer-Hsiang Hsu, Chia Chen
Copyright Year	2004
Abstract	Near-resonant optical pumping is used to encode an anisotropy of third-order susceptibility v ð3Þ in azo-dye doped polymethylmethacrylate thin films. The v ð3Þ -anisotropy is probed with two nonlinear techniques: third harmonic generation (THG) and nonlinear transmission (NLT). Using the NLT technique, the photoisomerization-induced change of the imaginary part of v ð3Þ is probed. A dynamic microscopic model of the third-order nonlinearity behavior based on angular hole burning and angular redistribution mechanisms of the photoisomerization effect is presented to describe the observed optical nonlinear responses. Results from the model are generally consistent with optically pumped THG and NLT experiments.
Starting Page	33
Ending Page	43
Page Count	11
File Format	PDF HTM / HTML
DOI	10.1016/j.optcom.2004.03.013
Volume Number	236
Alternate Webpage(s)	http://nfudee.nfu.edu.tw/ezfiles/43/1043/img/369/2004.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.optcom.2004.03.013
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article