偶氮化合物中级联作用引起的高阶多波混频的研究  

High Order Harmonic Generation of Two Colour Coherence Fields

作　　者：车彦龙[1] 杨延强[1] 杨启光[1] 费浩生[1] 魏振乾[1] 韩力[1] 孙桂娟[1] 孔祥贵[2] 

机构地区：[1]吉林大学物理系 [2]中国科学院激发态物理开放实验室

出　　处：《光学学报》1997年第8期1006-1010,共5页Acta Optica Sinica

基　　金：国家科委863高科技项目;国家自然科学基金

摘　　要：用三维简并四波混频的实验装置，在偶氮化合物中观察到了多波混频效应。在接收屏上，除了三个泵浦光斑，还观察到了由于多波耦合产生的另外１４个排列整齐的信号光斑，这个现象可望被广泛用到光计算、信息处理和光互连中。By solving the 1 dimensional time dependent Schrodinger equation, the effects of laser frequency and two colour coherence fields on high order harmonic generation (HOHG) of atom under the same laser intensity are studied. The results show that with higher laser frequency, one can get lower order harmonics but higher conversion efficiency; with lower laser frequency, get higher order harmonics but lower conversion efficiency; with two colour laser fields, both the harmonic order and conversion efficiency are raised obviously. With the first harmonic and its second harmonic the even order harmonics can be obtained.

关 键 词：多波耦合 偶氮染料 三维简并 四波混频 

分 类 号：O437.1[机械工程—光学工程]