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飞秒荧光亏蚀光谱技术研究液相体系取向弛豫

The Study of Orientational Relaxation in Solution Using Femtosecond Time-resolved Fluorescence Depletion Spectroscopy

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【作者】 刘建勇范文慧韩克利徐大力楼南泉

【Author】 Liu Jianyong, Fan Wenhui, Han Keli **, Xu Dali, Lou Nanquan (Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023)

【机构】 中国科学院大连化学物理研究所分子反应动力学国家重点实验室分子反应动力学国家重点实验室 大连116023大连116023大连116023

【Abstract】 Femtosecond time-resolved fluorescence depletion spectroscopy was 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 from the fluorescence depletion spectra, as the polarization of probe pulse is parallel and perpendicular respectively. The results show that the transition dipole moment of the pump and the probe of LD700 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.

【基金】 国家自然科学基金资助项目 ( 2 983 3 0 80 );中国科学院知识创新计划 (DICPK2 0 0 /E3 )资助项目
  • 【文献出处】 化学物理学报 ,Chinese Journal of Chemical Physics , 编辑部邮箱 ,2003年03期
  • 【分类号】O657.3
  • 【被引频次】1
  • 【下载频次】88
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