Open AccessSpectroscopic properties of Tm3+-doped NaY (WO4)2 crystals
Author(s) -
Feng Song,
Jing Su,
Huifeng Tan,
Meiru Shang,
Zhaohui Wu,
Jie Tian,
Guangyin Zhang,
Cheng Zhen-Xiang,
Huanchu Chen
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.53.3591
Subject(s) - materials science , doping , thulium , chemistry , optoelectronics
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.