Extracting Spectral Dynamics from Single Chromophores in Solution
Author(s)
Marshall, Lisa Faye; Cui, Jian; Brokmann, Xavier; Bawendi, Moungi G.
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Fluorescence spectroscopy of single chromophores immobilized on a substrate has provided much fundamental insight, yet the spectral line shapes and dynamics of single chromophores freely diffusing in solution have remained difficult or impossible to measure with conventional linear spectroscopies. Here, we demonstrate an interferometric technique for extracting time dependent single chromophore spectral correlations from intensity correlations in the interference pattern of an ensemble fluorescence spectrum. We apply our technique to solutions of colloidal quantum dots and explore the spectrum of single particles on short time scales not feasible with conventional fluorescence measurements.
Date issued
2010-07Department
Massachusetts Institute of Technology. Department of ChemistryJournal
Physical Review Letters
Publisher
American Physical Society
Citation
Marshall, Lisa F. et al. "Extracting Spectral Dynamics from Single Chromophores in Solution." Physical Review Letters 105.5 (2010): 053005. © 2010 The American Physical Society
Version: Final published version
ISSN
0031-9007