Formation of subfemtosecond laser pulses in aperiodically poled nonlinear-optical crystals

被引:5
作者
Shutov, I. V. [1 ]
Novikov, A. A. [2 ]
Chirkin, A. S. [1 ]
机构
[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119992, Russia
[2] Moscow MV Lomonosov State Univ, Ctr Int Laser, Moscow 119992, Russia
关键词
quasi-phase-matched interactions; aperiodic variation of nonlinearity; coupled processes; multifrequency interactions; synthesis of ultrashort pulses;
D O I
10.1070/QE2008v038n03ABEH013700
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The method of synthesis of ultrashort laser pulses in nonlinear aperiodically poled crystals based on the simultaneous generation of several higher optical harmonics is considered. The interaction of four waves with multiple frequencies involving three mutually coupled nonlinear three-frequency processes is studied. It is shown that by introducing intense laser radiation into a crystal, pulses of duration of the order of a few hundreds of attoseconds can be produced at the crystal output.
引用
收藏
页码:258 / 262
页数:5
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