Excitation intensity and polarization effects in the picosecond spectroscopy of molecular aggregates

Edward L. Quitevis, Miin Liang Horng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

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 excitions.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages198-205
Number of pages8
ISBN (Print)0819402508, 9780819402509
DOIs
StatePublished - 1990
EventPicosecond and Femtosecond Spectroscopy from Laboratory to Real World - Los Angeles, CA, USA
Duration: Jan 16 1990Jan 17 1990

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1209
ISSN (Print)0277-786X

Conference

ConferencePicosecond and Femtosecond Spectroscopy from Laboratory to Real World
CityLos Angeles, CA, USA
Period01/16/9001/17/90

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    Quitevis, E. L., & Horng, M. L. (1990). Excitation intensity and polarization effects in the picosecond spectroscopy of molecular aggregates. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 198-205). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1209). Publ by Int Soc for Optical Engineering. https://doi.org/10.1117/12.17900