光学差频产生(DFG),optical difference frequency generation...
6) nonlinear optical difference frequency generation 非线性光学差频 1. We use nonlinear optical difference frequency generation to obtain THz waves which belongs to photonics method. 在光子学领域,非线性光学差频方法是获取高功率、低成本、便携式、室温运转太赫兹波的主要方法之一。