Open AccessZ-scan measurements on photoisomerization of azobenzene polymer and their theoretical interpretation
Author(s) -
Liang Jiang,
Xiaosheng Wang,
Luo Duan-bin,
Weilong She,
Wu Shui-Zhu,
Fang Zeng,
Tian Tang,
Shenglan Yao
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.3596
Subject(s) - photoisomerization , azobenzene , refractive index , optics , polymer , materials science , intensity (physics) , laser , physics , chemistry , isomerization , composite material , catalysis , biochemistry
Z_scan experiments are performed on the azobenzene polymer (DR_13_PMMA) films with He_Ne laser. It is found that the relation between the cha nge of refractive index of the sample and the light intensity behaves like a sat u rable effect, whose relative parameters are alterable with light intensity. It i s also found that the change of refractive index induced by linearly polarized l ight is distinctly greater than that induced by circularly polarized light. The phenomena are explained by using the theory based on the effect of angular hole burning of photoisomerization.