Observation of Anti-Stokes Resonance Raman Signals of Gaseous Bromine with 5145 Å Excitation

The 5145 Å laser line was used to excite gaseous bromine in order to observe the resonance Raman effect. In the Stokes side, strong resonance fluorescence overwhelm, therefore the resonance Raman scattering could not be detected. However, in the anti-Stokes side, four resonance Raman peaks were observed. The corresponding transitions are Δν= ?1 to ?4. The resonance Raman spectrum excited by the 4880 Å laser line was also presented for comparison.