拉曼散射光的频率和激发光频率之差称为拉曼位移 对不同物质：ΔV不同对同一物质：ΔV不变与入射光频率无关拉曼位移取决于分子振动能级的变化不同的化学键或基态有不同的振动方式决定了其能级间的能量变化因此与之对应的拉曼位移是特征的。翻译英文

The frequency difference between Raman scattered light and excitation light is called the Raman shift.

For different substances, ΔV varies. For the same substance, ΔV remains constant and is independent of the incident light frequency.

The Raman shift depends on the change in molecular vibrational energy levels. Different chemical bonds or ground states have different vibrational modes, which determine the energy changes between their levels. Therefore, the corresponding Raman shift is characteristic