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The Study of Orientational Relaxation in Solution Using Femtosecond Time-resolved Fluorescence Depletion Spectroscopy
Liu Jianyong,Fan Wenhui,Han Keli*,Xu Dali,Lou Nanquan
Author NameAffiliationE-mail
Liu Jianyong Dalian Institute of Chemical Physics, Chinese Academy ofSciences, Dalian 116023  
Fan Wenhui Dalian Institute of Chemical Physics, Chinese Academy ofSciences, Dalian 116023  
Han Keli* Dalian Institute of Chemical Physics, Chinese Academy ofSciences, Dalian 116023 klhan@dicp.ac.cn 
Xu Dali Dalian Institute of Chemical Physics, Chinese Academy ofSciences, Dalian 116023  
Lou Nanquan Dalian Institute of Chemical Physics, Chinese Academy ofSciences, Dalian 116023  
Abstract:
Femtosecond time-resolved fluorescence depletion spectroscopywas used in the study of the orientation relaxation of Rhodamine 700(LD700) and Oxazine 750(OX750) in DMSO. The anisotropy functions of the dye molecules were obtained fromthe fluorescence depletion spectra, as the polarization of probe pulse is parallel and perpendicular respectively. The results showthatthe transition dipole momentof the pump and the probe ofLD700 and OX750 are parallel. The time constants of the orientation relaxation of these dye molecules in DMSO are 1.8 and 1.9 ps for LD700 and OX750, respectively.
Key words:  Orientational relaxation, Laser dye, Femtosecond laser, Fluorescence depletion spectroscopy
FundProject:国家自然科学基金资助项目(29833080)和中国科学院知识创新计划(DICP K200 / E3)资助项目.
飞秒荧光亏蚀光谱技术研究液相体系取向弛豫
刘建勇,范文慧,韩克利*,徐大力,楼南泉
摘要:
关键词:  取向弛豫  激光染料  飞秒激光  荧光亏蚀光谱
DOI:10.1088/1674-0068/16/3/161-162
分类号: