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

页码：253 / 257

页数：5

共 17 条

[1] Non-linear optothermal properties of metal-free phthalocyanine [J].