Observation of the suppression of the stimulated hyper-Raman scattering (3S<sub>1/2</sub>-4P<sub>3/2</sub>) near the sodium 4D two-photon resonance
Mao-hong Lu; Yu-mei Liu; Mao-hong Lu; Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan; Yu-mei Liu; Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Журнал:
Journal of Physics B: Atomic, Molecular and Optical Physics
Дата:
1994-10-28
Аннотация:
The stimulated hyper-Raman scattering (SHRS) emissions associated with the excitation of the 4P<sub>3/2</sub> state in sodium vapour have been observed in both the forward and backward directions as the pumping laser was tuned near the 3S-4D two-photon resonance. The results show that though the forward SHRS process is greatly reduced by a destructive interference between it and the four-wave mixing (FWM) process induced by itself, the forward SHRS emission has a positive gain and can still be observed under a certain condition.
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