TY - JOUR
T1 - Real-time spectroscopy of Frenkel exciton system
AU - Kano, Hideaki
AU - Kobayashi, Takayoshi
N1 - Funding Information:
This paper is submitted in memory of Prof. Shigeo Shionoya, who shares interest in the ultrafast spectroscopy with the authors. The authors thank Dr. Y. Takasu and Prof. I. Nishio of Aoyama Gauin University for Raman scattering measurements. The work is partly supported by Research for the Future of Japan Society for the Promotion of Science (JSPS-RFTF-97P-00101).
PY - 2002/12
Y1 - 2002/12
N2 - We performed selective excitations of the first- and second-excited Frenkel exciton states (Q- and B-excitons) with use of sub-40-fs and sub-5-fs visible laser pulses. The transient absorption signals exhibit oscillatory features associated with molecular vibrations. From an analysis of the spectral profiles of the phase and amplitude of the oscillation, the experimental result is well explained by the modulated transition dipole moment, which is caused by the dynamic intensity borrowing from the intense B-transition to the weak Q-transition.
AB - We performed selective excitations of the first- and second-excited Frenkel exciton states (Q- and B-excitons) with use of sub-40-fs and sub-5-fs visible laser pulses. The transient absorption signals exhibit oscillatory features associated with molecular vibrations. From an analysis of the spectral profiles of the phase and amplitude of the oscillation, the experimental result is well explained by the modulated transition dipole moment, which is caused by the dynamic intensity borrowing from the intense B-transition to the weak Q-transition.
UR - http://www.scopus.com/inward/record.url?scp=0036894721&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036894721&partnerID=8YFLogxK
U2 - 10.1016/S0022-2313(02)00426-X
DO - 10.1016/S0022-2313(02)00426-X
M3 - Article
AN - SCOPUS:0036894721
VL - 100
SP - 269
EP - 282
JO - Journal of Luminescence
JF - Journal of Luminescence
SN - 0022-2313
IS - 1-4
ER -