Generation of terahertz radiation upon filtration of a supercontinuum produced during the propagation of a femtosecond laser pulse in a GaAs crystal

被引：0
作者：
Vardanyan, A. O. [1 ]
Oganesyan, D. L. [1 ]
机构：
[1] Yerevan Sci Res Inst Optophys Measurements, Yerevan 375031, Armenia
来源：
QUANTUM ELECTRONICS | 2008年 / 38卷 / 11期
关键词：
femtosecond laser pulse; terahertz pulse; susceptibility; optical rectification; finite-difference method;
D O I：
10.1070/QE2008v038n11ABEH013888
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 results of a theoretical study of the formation of a supercontinuum produced due to the interaction of femtosecond laser pulses with an isotropic nonlinear medium are presented. The system of nonlinear Maxwell's equations was numerically integrated in time by the finite-difference method. The interaction of mutually orthogonal linearly-polarised 1.98-mu m, 30-fs, 30-nJ pulses propagating along the normal to the < 110 > plane in a I-mm-long GaAs crystal was considered. In the nonlinear part of the polarisation medium, the inertialless second-order nonlinear susceptibility was taken into account. The formation process of a terahertz pulse obtained due to the supercontinuum filtration was studied.
引用
收藏
页码：1070 / 1077
页数：8
相关论文
共 44 条
  • [41] Generation of terahertz radiation at optical breakdown of air: The dependence of the optimal phase shift between the components of a two-color laser pulse on their intensity
    I. E. Ilyakov
    B. V. Shishkin
    L. N. Alexandrov
    M. Yu. Emelin
    M. Yu. Ryabikin
    JETP Letters, 2015, 101 : 74 - 78
  • [42] Numerical Modeling of Difference Frequency Radiation Generation by a Few Optical Cycles Duration Pulse Propagating in a Quasi-Phase-Matching GaAs Crystal
    Hovhannisyan, D. L.
    Hakhoumian, A. A.
    Laziev, E. M.
    Nikoghosyan, A. S.
    Hovhannisyan, G. D.
    INTERNATIONAL CONFERENCE ON LASER PHYSICS 2010, 2011, 7998
  • [43] Modeling of difference frequency radiation energy redistribution process in a spectrum of laser pulse of a few optical cycles propagating in a quasi-phase-matching GaAs crystal
    Hovhannisyan, D. L.
    Hakhoumian, A. A.
    Martirosyan, R. M.
    Laziev, E. M.
    Nikoghosyan, A. S.
    Hovhannisyan, G. D.
    JOURNAL OF MODERN OPTICS, 2010, 57 (12) : 1075 - 1086
  • [44] Process of near infrared radiation generation via optical rectification of a few optical cycles laser pulse in LiNbO3 and filtration by fibre-Bragg grating
    Hovhannisyan, David L.
    Vardanyan, Alexander O.
    LASERS IN ENGINEERING, 2008, 18 (1-2) : 35 - 47
12345