Cotter, D., Hanna, D.C., Tuttlebee, W.H.W. and Yuratich, M.A.
Stimulated hyper-Raman emission from sodium vapour
Optics Communications, 22, . (doi:10.1016/0030-4018(77)90017-7).
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The first observation of tunable stimulated hyper-Raman scattering is reported. A dye laser omega(p) focussed into sodium vapour produced stimulated hyper-Raman emission (2omega(p) - omega(3s-4p) ) at ~ 2.3 µm when 2omega(p) was tuned near the 3s-4d two-photon resonance. Photon conversion efficiencies up to 2% were obtained. The hyper-Raman emission was tuned over a ~160 /cm range, and could be observed with pump powers as low as ~2kW.
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