Ultrafast photoisomerization in DCM dye observed by new femtosecond Raman spectroscopy

Masayuki Yoshizawa, Masaki Kubo, Makoto Kurosawa

Research output: Contribution to journalConference articlepeer-review

26 Citations (Scopus)


Ultrafast trans-cis photoisomerization in DCM solutions has been investigated using new time-resolved Raman spectroscopy. The new method measures stimulated Raman scattering in photoinduced transient species using a Raman pump pulse with narrow bandwidth and a femtosecond supercontinuum probe pulse. The temporal and spectral resolutions obtained in this study are 250 fs and 25 cm-1, respectively. The observed Raman signals are separated to two groups from the temporal dependence and assigned to an intermediate state between trans- and cis-forms and a charge-transfer state in DCM.

Original languageEnglish
Pages (from-to)739-741
Number of pages3
JournalJournal of Luminescence
Publication statusPublished - 2000 May
EventInternational Conference on Luminescence and Optical Spectroscopy of Condensed Matter (ICL'99) - Osaka, Jpn
Duration: 1999 Aug 231999 Aug 27


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