Spontaneous X waves: numerical experiments

Author

Valiulis, G. ; Piskarskas, A. ; Di Trapani, Paolo ; Jedrkiewicz, Ottavia ; Trull, Jose ; Trillo, S. ; Conti, C.

Author_Institution

Dept. of Quantum Electron., Vilnius Univ., Lithuania

fYear

2003

fDate

22-27 June 2003

Firstpage

52

Abstract

This study presents a detailed analysis based on numerical experiments devoted to the characterization of the non-linear spatio-temporal dynamics of an initially separable (gaussian-like, spherical, short and focused) wave-packet, encompassing second-harmonic generation (SHG) in a conventional, bulk, X⁽²⁾ material. The initial self focusing of the fundamental wave is supported by the chosen positive phase mismatch. As to the temporal broadening, the authors addressed both the case of dominant group-velocity mismatch and the case dominated by positive group-velocity dispersion.

Keywords

laser beams; optical dispersion; optical harmonic generation; optical materials; optical self-focusing; spatiotemporal phenomena; spectral line broadening; X⁽²⁾ material; bulk material; focused wave-packet; fundamental wave; gaussian-like wave-packet; group-velocity mismatch; nonlinear dynamics; optical self focusing; positive group-velocity dispersion; positive phase mismatch; second-harmonic generation; short wave-packet; spatiotemporal dynamics; spherical wave-packet; spontaneous X waves; temporal broadening; Character generation; Crystals; Diffraction; Electron traps; Gaussian processes; Monitoring; Nonlinear optics; Optical harmonic generation; Phase modulation; Physics;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference, 2003. EQEC '03. European

Print_ISBN

0-7803-7733-8

Type

conf

DOI

10.1109/EQEC.2003.1313909

Filename

1313909