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

Autor: Aleksandr O Vardanyan, David L Oganesyan, G D Oganesyan
Rok vydání: 2013
Předmět:
Zdroj: Quantum Electronics. 43:519-525
ISSN: 1468-4799
1063-7818
DOI: 10.1070/qe2013v043n06abeh014735
Popis: 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 differencefrequency pulse.
Databáze: OpenAIRE