调Q脉冲激光所产生冲击波间的非线性耦合

Nonlinear coupling between the shock waves induced in a piezoelectric ceramic slab by a Q-Switched laser radiation

用调Ｑ红宝石脉冲激光辐照ＰＺＴ压电陶瓷基片表面上的银膜时，观察到所产生冲击波间的调幅现象。这表明，激光所产生的冲击波在压电陶瓷片中引起了非线性的正压电效应。

When the silver film on the surface of a PZT Piezoelectric ceramic slab is irradiated by a Q-Switched ruby laser radiation,an amplitude-modulation Phenomenon accured between the laser induced shock waves has been observed.It indicates that the laser induced shock waves cause nonlinear positive piezoelectric effect in the PZT ceramic slab.