The lifetime of the triplet excited state and modulation characteristics of all-optical switching in phenoxy-phthalocyanines liquid

被引：12

作者：

Yao, Chengbao ^{[1
,2
]}

Zhang, Yundong ^{[1
]}

Sun, Wenjun ^{[2
]}

Yu, Changqiu ^{[1
]}

Li, Jin ^{[1
]}

Yuan, Ping ^{[1
]}

机构：

[1] Harbin Inst Technol, Inst Optoelect, Natl Key Lab Tunable Laser Technol, Harbin 150080, Peoples R China

[2] Harbin Normal Univ, Sch Phys & Elect Engn, Key Lab Photon & Elect Bandgap Mat, Minist Educ, Harbin 150025, Peoples R China

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 02期

基金：

中国国家自然科学基金;

关键词：

REVERSE SATURABLE ABSORPTION; LIMITING PROPERTIES; DYNAMICS; FEMTOSECOND;

D O I：

10.1364/OE.21.002212

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present our experimental results on the measurements of excited state dynamics in 2, 9, 16, 23-phenoxy-phthalocyanine (Pc1) and 2, 9, 16, 23-phenoxy-phthalocyanine-zinc (Pc2) using the pump-probe experiment. The results show that the lifetime of the first triplet excited state of the Pc2 longer than Pc1. The lifetimes of the triplet excited state for Pc2 and Pc1 are 12.8. mu s and 10.1. mu s at the same intensity, respectively. Moreover, analysis of modulation characteristics of all-optical switching (A-OS) shows that the stronger the light intensity of the pump light is, the smaller the normalized transmittance is, and the lower the A-OS response time is. The consequences of such short lifetimes are also discussed in view of the strong A-OS properties of these molecules. (C) 2013 Optical Society of America

引用

页码：2212 / 2219

页数：8

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