PHASE AND GROUP-VELOCITY MATCHING FOR 2ND HARMONIC-GENERATION OF FEMTOSECOND PULSES

被引:68
作者
ZHANG, TR [1 ]
CHOO, HR [1 ]
DOWNER, MC [1 ]
机构
[1] UNIV TEXAS,DEPT PHYS,AUSTIN,TX 78712
来源
APPLIED OPTICS | 1990年 / 29卷 / 27期
关键词
D O I
10.1364/AO.29.003927
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We theoretically analyze a method for matching group velocities of fundamental and second harmonic femtosecond pulses during phase matched frequncy doubling by predispersing the fundamental pulse with a prism. The method permits improved conversion efficiency by allowing crystal lengths of several millimeters without sacrificing second harmonic pulse duration. Second harmonic pulse energy and duration are analyzed for β-BaB2O4and limiting experimental factors are discussed. The results show that the method is most advantageous for incident pulses between 0.1- and 1.0-ps duration and microjoule and higher energies and that second harmonic pulse duration and conversion efficiency are not highly sensitive to optical misalignments of the order of 1°. © 1990 Optical Society of America.
引用
收藏
页码:3927 / 3933
页数:7
相关论文
共 20 条