Abstract
We report on the observation of a highly efficient transformation of laser radiation into higher-order Stokes and anti-Stokes components in impulsively vibrationally excited gaseous S. The specific (Bessel-like) behavior of their intensity with the gas pressure reveals the mutual coherence of the generated frequencies. We propose this new regime of Raman frequency conversion for generation of sub-fs pulses.
- Received 10 May 1999
DOI:https://doi.org/10.1103/PhysRevLett.83.2560
©1999 American Physical Society