【摘要】 <正> Ⅰ.Introduction Hyper-Raman scattering is a three-photon Raman process（as shown in the figure ω_s-stokes frequency and ω₁-pump laser frequency）.ω_L1 and ω_L2 may come from the same laser, as in the case in our experiment. Because the frequency shift of stokes is two times as large as that of a pump laser, the stimulated hyper-Raman scattering can be applied to更多还原