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Proceedings Paper

Excitation intensity and polarization effects in the picosecond spectroscopy of molecular aggregates
Author(s): Edward L. Quitevis; Miin-Liang Horng
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Paper Abstract

The optical dynamics of J-aggregates of 1,1'-diethyl-2,2'-cyanine in solution and adsorbed on 4-nm-diameter colloidal silica particles has been studied by using picosecond polarized pump-probe spectroscopy. The absorption anisotropy and the excitation-intensity dependence of the ground-state recovery kinetics are compared in these two systems. The results are discussed in terms of the dynamics of delocalized and localized excitons.

Paper Details

Date Published: 1 April 1990
PDF: 8 pages
Proc. SPIE 1209, Picosecond and Femtosecond Spectroscopy from Laboratory to Real World, (1 April 1990); doi: 10.1117/12.17900
Show Author Affiliations
Edward L. Quitevis, Texas Tech Univ. (United States)
Miin-Liang Horng, Texas Tech Univ. (United States)

Published in SPIE Proceedings Vol. 1209:
Picosecond and Femtosecond Spectroscopy from Laboratory to Real World
Keith A. Nelson, Editor(s)

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