Dynamic intensity borrowing in porphyrin J-aggregates revealed by sub-5-fs spectroscopy

Hideaki Kano, Takashi Saito, Takayoshi Kobayashi

Research output: Contribution to journalArticlepeer-review


Sub-5-fs spectroscopy of porphyrin J-aggregates reveals for the first time coherent molecular vibration coupled to the Frenkel exciton. The oscillations with the frequency of 244cm-1 are described by a plus-cosine function for bleaching and a minus-cosine function for induced absorption. The coherent oscillation is explained by a modulated transition dipole moment, which is due to the transfer of an oscillator strength from the intense B-band to the weak Q-band through the ruffling mode with 244cm-1-frequency.

Original languageEnglish
Pages (from-to)604-606
Number of pages3
JournalSpringer Series in Chemical Physics
Publication statusPublished - 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry


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