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Title: Analyzing fluorophore electronic structure and depolarization by fluorescence polarizing angle spectrum

Abstract

In this Letter, a method, based on stokes parameters, is developed to observe the angular displacement between the excitation and emission moments. Experiments demonstrate that when combined with degree of polarization spectrums, we can acquire the depolarization caused by angular displacement or energy migration. The method presented in this Letter can be easily realized with the existing fluorescence measuring system and may potentially make it convenient to study the fluorophore electronic structure or the mechanism of fluorescence anisotropy.

Authors:
; ; ; ;  [1]
  1. School of Optoelectronics, Beijing Institute of Technology, Beijing 100081 (China)
Publication Date:
OSTI Identifier:
22311120
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; DEPOLARIZATION; ELECTRONIC STRUCTURE; EXCITATION; FLUORESCENCE; MEASURING METHODS; MIGRATION; POLARIZATION; SPECTRA; STOKES PARAMETERS

Citation Formats

Mu, Taotao, Chen, Siying, E-mail: csy@bit.edu.cn, Zhang, Yinchao, Chen, He, and Guo, Pan. Analyzing fluorophore electronic structure and depolarization by fluorescence polarizing angle spectrum. United States: N. p., 2014. Web. doi:10.1063/1.4890860.
Mu, Taotao, Chen, Siying, E-mail: csy@bit.edu.cn, Zhang, Yinchao, Chen, He, & Guo, Pan. Analyzing fluorophore electronic structure and depolarization by fluorescence polarizing angle spectrum. United States. doi:10.1063/1.4890860.
Mu, Taotao, Chen, Siying, E-mail: csy@bit.edu.cn, Zhang, Yinchao, Chen, He, and Guo, Pan. Mon . "Analyzing fluorophore electronic structure and depolarization by fluorescence polarizing angle spectrum". United States. doi:10.1063/1.4890860.
@article{osti_22311120,
title = {Analyzing fluorophore electronic structure and depolarization by fluorescence polarizing angle spectrum},
author = {Mu, Taotao and Chen, Siying, E-mail: csy@bit.edu.cn and Zhang, Yinchao and Chen, He and Guo, Pan},
abstractNote = {In this Letter, a method, based on stokes parameters, is developed to observe the angular displacement between the excitation and emission moments. Experiments demonstrate that when combined with degree of polarization spectrums, we can acquire the depolarization caused by angular displacement or energy migration. The method presented in this Letter can be easily realized with the existing fluorescence measuring system and may potentially make it convenient to study the fluorophore electronic structure or the mechanism of fluorescence anisotropy.},
doi = {10.1063/1.4890860},
journal = {Applied Physics Letters},
number = 3,
volume = 105,
place = {United States},
year = {Mon Jul 21 00:00:00 EDT 2014},
month = {Mon Jul 21 00:00:00 EDT 2014}
}
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  • Electronic excited-state transport in a system composed of randomly distributed molecules, i.e., rhodamine 6G in glycerol, is experimentally investigated. Time-resolved fluorescence depolarization measurements, which use a fluorescence mixing technique to give subnanosecond time resolution, provide a stringent test for theoretical work on this subject. The results yield an R/sub 0/ value of 50 A for R6G and confirm the results of the recent diagrammatic self-consistent theoretical method. Mean-square displacements and their time derivatives are reported. Energy transport is nondiffusive in the samples studied.
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