Difference-frequency generation in the field of a few-cycle laser pulse propagating in a GaAs crystal with a domain structure

被引：0

作者：

Oganesyan, D. L. ^{[1
]}

Vardanyan, A. O. ^{[2
]}

Oganesyan, G. D. ^{[1
]}

机构：

[1] Yerevan State Univ, Fac Radiophys, Yerevan 0025, Armenia

[2] Yerevan Sci Res Inst Optophys Measurements, Yerevan 375031, Armenia

来源：

QUANTUM ELECTRONICS | 2013年 / 43卷 / 06期

关键词：

femtosecond laser pulse; chirped domain structure; super-continuum; frequency-time distribution; straight-line method;

D O I：

10.1070/QE2013v043n06ABEH014735

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：

Difference-frequency generation in a GaAs crystal with a periodic domain structure in the field of a few-cycle laser pulse is considered for the case of weakly pronounced material dispersion. The straight-line method is used to solve numerically the system of coupled nonlinear partial differential equations describing the evolution of the electric field of this laser pulse in GaAs crystals with periodic and chirped domain structures. It is shown that application of a GaAs crystal with a chirped domain structure makes it possible to control the frequency-modulation law for a broadband difference-frequency pulse.

引用

页码：519 / 525

页数：7

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