Imaging Science and Photochemistry ›› 2010, Vol. 28 ›› Issue (6): 416-424.DOI: 10.7517/j.issn.1674-0475.2010.06.416

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Laser Trapping of Dye-Doped Polystyrene Beads and in Situ Measurements of Steady-State and Time-Resolved Fluorescence Spectroscopies

LI Ming1,2, ZENG Yi1, LI Ying-ying1, LI Yi1   

  1. 1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R.China;
    2. Graduate University of the Chinese Academy of Sciences, Beijing 100049, P.R.China
  • Received:2010-05-12 Revised:2010-05-28 Online:2010-11-23 Published:2010-11-23

Abstract: An experimental setup of laser trapping combined with in situ measurements of steady-state and time-resolved fluorescence spectroscopies was developed for analyzing photophysical properties of a single submicrometer particle in solution.Simultaneous laser trapping and in situ steady-state and time-resolved fluorescence measurements of dye-doped polystyrene beads were demonstrated.This study provides a new strategy for investigating photophysical properties of a single submicrometer particle.

Key words: laser trapping, steady-state fluorescence spectroscopy, time-resolved fluorescence spectroscopy, dye-doped polystyrene bead,rhodamine 6G

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