Limits on Fluorescence Detected Circular Dichroism of Single Helicene Molecules

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Limits on Fluorescence Detected Circular Dichroism of Single Helicene Molecules

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Title: Limits on Fluorescence Detected Circular Dichroism of Single Helicene Molecules
Author: Tang, Yiqiao; Cook, Timothy A.; Cohen, Adam Ezra

Note: Order does not necessarily reflect citation order of authors.

Citation: Tang, Yiqiao, Timothy A. Cook, and Adam Ezra Cohen. 2009. Limits on fluorescence detected circular dichroism of single helicene molecules. Journal of Physical Chemistry A 113(22): 6213-6216.
Access Status: At the direction of the depositing author this work is not currently accessible through DASH.
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Abstract: Fluorescent imaging of single helicene molecules is applied to study the optical activity of chiral fluorophores. In contrast to the previous report by Hassey et al. (Science 2006, 314, 1437), the dissymmetry factors of single chiral fluorophores are found not to differ significantly from the bulk value of |g| < 10^{−4} at 457 nm. Linear dichroism and birefringence of the dichroic mirror inside the fluorescence microscope change the polarization state of the incoming laser beam significantly; i.e., circular polarized light sent into the microscope becomes highly elliptically polarized after reflection from the dichroic mirror. Compensation for this effect should be made to avoid artifacts brought by linear dichroism in single immobilized molecules.
Published Version: doi:10.1021/jp903598t
Other Sources: http://www.canli.dicp.ac.cn/Gruop%20Seminars%20Pdf/20091121sqiu.pdf
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4382416

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  • FAS Scholarly Articles [6948]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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