Abstract
We present the results of theoretical study of generation of difference frequency radiation in interaction of few-cycle laser pulse with a GaAs thin crystal. 2D numerical time-integration of system of nonlinear Maxwell equations for the TEy mode has been performed by the finite-difference method. We consider the interaction of linearly-polarized pulse having the central wavelength of 1.98 μm, duration of 17.16 fs and the electric field amplitude E x0,max = 100 MV/m, propagating along the normal to the ?110? plane in the 14.74 μm-thickness GaAs crystal. The beam waist of initial linearly polarized pulse varies from 5.94 μm to 9.9 μm. The process of generation of difference frequency radiation (DFR) pulses arising at the output of nonlinear crystal via spectral filtration of formed supercontinuum is studied. The dependence of difference frequency generation efficiency on the beam waist is examined.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
