Share Email Print

Proceedings Paper

Picosecond polarization spectroscopy of fluorescein attached to different molecular volume polymer influenced by rotational motion
Author(s): Yang Pu; Wubao Wang; R. B. Dorshow; R. R. Alfano
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Time-resolved fluorescence polarization spectroscopy of various molecular volume fluorescein dye-labeled polymers influenced by the molecular rotation motion was investigated by picosecond dynamics measurements. The time-resolved picosecond polarization spectroscopy was modeled using a system of first-order linear differential equations containing two main parameters: the decay rate of emission and the rate of one orthogonal emission component transferring to another. Both experimental observation and theoretical calculation indicate that the fluorescent molecular rotation is the cause of the depolarization. The dipole's rotational time was extracted and shows increasing with the molecular volume obeying the Einstein-Stokes relation.

Paper Details

Date Published: 20 February 2012
PDF: 5 pages
Proc. SPIE 8258, Organic Photonic Materials and Devices XIV, 825818 (20 February 2012); doi: 10.1117/12.904692
Show Author Affiliations
Yang Pu, The City College of New York (United States)
Wubao Wang, The City College of New York (United States)
R. B. Dorshow, Mallinckrodt Inc. (United States)
R. R. Alfano, The City College of New York (United States)

Published in SPIE Proceedings Vol. 8258:
Organic Photonic Materials and Devices XIV
Christopher Tabor; François Kajzar; Toshikuni Kaino; Yasuhiro Koike, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?