Observation of Resonance Raman Scattering below the Dissociation Limit in I2 Vapor
Inelastic photon scattering from I2 vapor was observed to change from resonance Raman scattering to resonance fluorescence as a single-mode argon laser was tuned through the 5145-Å gain profile. 3 orders of magnitude enhancement in the Stokes and the first-overtone intensities were measured in going from resonance Raman scattering to resonance fluorescence. The intensity distribution of the first 47 overtones is shown for the laser frequency coincident with the 43-->0 P(12) and 43-->0 R(14) transitions of B3Π0u+-->X1Σ0g+. The resonance Raman cross section of I2 compared with N2 was found to be 2.6 × 106.
Physical Review Letters
- Pub Date:
- August 1972