| 1. | We got the pl spectrum of zno nanowires using an 806nm fs laser act excited source based nonlinear optical process . the results showed the second harmonic generation ( shg ) phenomenon besides the exciton - exciton collision peak at 388nm , at 实验中除388nm处的激子-激子碰撞峰之外,还观测到了二次谐波产生( shg )现象,另外在515nm附近观测到了由氧空位造成的绿光发射峰。 |