Abstract
Time-resolved spectroscopy is applied to the problem of collisionless intramolecular relaxation within the ground electronic state of polyatomic molecules. The redistribution of vibrational energy within a molecule may be monitored by the different anharmonic shifts which occur when the energy is localized in the different modes. Picosecond infrared-laser-absorption saturation-recovery measurements on SF6 show that the relaxation time, for statistical behavior to set in, falls within the limits 1A psec<T1<30A psec.
| Original language | English |
|---|---|
| Pages (from-to) | 745-749 |
| Number of pages | 5 |
| Journal | Physical Review Letters |
| Volume | 41 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1978 |
| Externally published | Yes |