提出了一种起源于光场与振子(boson元激发)之间非线性耦合的激光模型。详细地论证了该激光器的阂阈行为,它和光场与二能级原子耦合的激光一样,具有典型的二级相交特征。

This paper provides a model of laser action due to the nonlinear coupling between lightfield and oscillator(boson elementary excitation in medium).The threshold behavior of this kind of laser is demonstrated in detail, which possesses the typical feature of the second-order transition as that of the laser model associated with the interaction of lightfield and two-level atoms.