本文从粒子数密度矩阵方程和Maxwell方程出发,讨论了空心平板光波导中的绝热跟随效应,求出了空心平板光波导中的绝热跟随信号光场公式,介绍了一种用波导中的绝热跟随效应测量能级衰减速率的方法。结果表明:空心平板光波导中的绝热跟随信号光强比非波导情况要大,前者为后者的2倍;波导中的绝热信号光强与波导长度L成正 Based on the particle number density matrix equation and the Maxwell equation, the adiabatic following effect in a hollow slab waveguide is discussed, and the adiabatic following optical field equation is derived. Method of measuring energy level decay rate. The results show that the intensity of adiabatic following signal in hollow slab waveguide is larger than that in non-waveguide and the former is twice that in the latter. The intensity of adiabatic signal in waveguide is exactly proportional to the waveguide length L