Optical and non-linear optical properties of vanadium oxide phthalocyanine films

被引：42
|
作者：
Guo, L
Ma, G
Liu, Y
Mi, J
Qian, S [1 ]
Qiu, L
机构：
[1] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[2] Fudan Univ, Surface Phys Lab, Natl Key Lab, Shanghai 200433, Peoples R China
[3] Inst Photog Chem, Beijing 100083, Peoples R China
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2002年 / 74卷 / 03期
关键词：
D O I：
10.1007/s003400200801
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The optical and non-linear optical proper-ties of peripheral-substituted vanadium oxide phthalocyanine (VOPc) film and substituted VOPc/polymer composite film were investigated using stationary and transient spectroscopy techniques. The absorption Q band of the VOPc/polymer composite film shows a red shift relative to that of the peripheral-substituted VOPc film, revealing the monomeric characteristics of VOPc molecules. Effective quenching of PL emission was observed for the VOPc/polymer composite film and could be assigned to the efficient VOPc-polymer interaction. From pump-probe and optical Kerr effect (OKE) measurements, two decay components were obtained by fitting the transients for both VOPc films. The fast component., in a femtosecond time domain, originates from the electron-phonon interaction, and the difference in their slow decay is an indication of an efficient ISC process in the VOPc/polymer composite film, The third-order non-linear optical susceptibilities of these films were determined to be in the order of 10(-11) esu.
引用
收藏
页码：253 / 257
页数：5
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