Title :
Dynamic intensity borrowing induced by coherent vibrations in J-aggregates detected by sub-5-fs spectroscopy
Author :
Kobayashi, T. ; Kano, H. ; Saito, T. ; Ueki, A.
Author_Institution :
Dept. of Phys., Tokyo Univ., Japan
Abstract :
Sub-5-fs real-time spectroscopy revealed that coherent molecular vibrations coupled to the Frenkel exciton system. The oscillation in the induced absorption spectrum is interpreted as the modulated transition dipole moment due to the oscillator strength transfer.
Keywords :
excitons; high-speed optical techniques; nonlinear optics; optical materials; organic compounds; oscillator strengths; time resolved spectra; time resolved spectroscopy; vibrational states; 5 fs; Frenkel exciton system; J-aggregates; coherent molecular vibrations; coherent vibrations; dynamic intensity borrowing; induced absorption spectrum; modulated transition dipole moment; oscillator strength transfer; real-time spectroscopy; sub-5-fs spectroscopy; Absorption; Bleaching; Delay effects; Excitons; Optical films; Optical modulation; Optical pumping; Real time systems; Spectroscopy; Ultrafast optics;
Conference_Titel :
Nonlinear Optics: Materials, Fundamentals, and Applications, 2000. Technical Digest
Conference_Location :
Kaua´i-Lihue, HI, USA
Print_ISBN :
1-55752-646-X
DOI :
10.1109/NLO.2000.883622
