Table of Contents
Laser Chemistry
Volume 10, Issue 3, Pages 139-145

Picosecond Absorption Spectroscopy of Energy Transfer Processes in Polymethine Dyes

1Chemical Department, Center of Optical Spectroscopy, Friedrich-Schiller-University Jena, Jena DDR-6900, Germany
2Laser Research Center, Vilnius-State-University, Vilnius 232054, Lithuania

Received 5 January 1989; Accepted 31 January 1989

Copyright © 1990 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Results are presented of time-resolved absorption investigations of energy transfer processes between a polymethine dye and an iron complex dye (dye E). For the first time the acceptor molecule transient absorption depletion generated by energy transfer from an excited donor was observed. The decay time of the acceptor deactivation (140Ps) in the presence of the energy donor agrees very well with the S1-state lifetime of the energy donor.