| Numéro |
J. Phys. Colloques
Volume 46, Numéro C7, Octobre 1985
Fifth International Conference on Dynamical Processes in the Excited States of Solids / Dynamique des Etats Excités dans les Solides
|
|
|---|---|---|
| Page(s) | C7-511 - C7-515 | |
| DOI | https://doi.org/10.1051/jphyscol:1985791 | |
Fifth International Conference on Dynamical Processes in the Excited States of Solids / Dynamique des Etats Excités dans les Solides
J. Phys. Colloques 46 (1985) C7-511-C7-515
DOI: 10.1051/jphyscol:1985791
1 Institute of Applied Physics, University of Tsukuba, Sakura, Ibaraki 305, Japan
2 Department of Physics, Faculty of Science, Kyoto University, Kyoto 606, Japan
J. Phys. Colloques 46 (1985) C7-511-C7-515
DOI: 10.1051/jphyscol:1985791
ULTRAFAST DEPHASING TIME MEASUREMENT IN CRESYL FAST VIOLET DOPED CELLULOSE BY PHOTON ECHOES WITH TEMPORALLY INCOHERENT LIGHT
H. Nakatsuka1, M. Fujiwara2 et R. Kuroda21 Institute of Applied Physics, University of Tsukuba, Sakura, Ibaraki 305, Japan
2 Department of Physics, Faculty of Science, Kyoto University, Kyoto 606, Japan
Abstract
Photon echoes with broad spectrum nanosecond laser pulses have been used to measure a femtosecond dephasing time (homogeneous transverse relaxation time) T2 of the S0↔1 transition of Cresyl Fast Violet molecules in a cellulose film. The measured T2 was much shorter at a shorter wavelength 5940A than that at a longer wavelength 6250A near the band edge.