Subpicosecond excited-state relaxation times in the organic molecular crystals pyrene and α-perylene are observed via femtosecond time-resolved transient absorption spectroscopy. Forward impulsive stimulated scattering with a single ultrashort excitation pulse is demonstrated in a crystal.
Advances in Laser Science-III
- Pub Date:
- October 1988
- Time-resolved optical spectroscopies and other ultrafast optical measurements in condensed matter;
- Ultrafast processes;
- optical pulse generation and pulse compression