TY - JOUR
T1 - Self-focusing and self-phase modulation of an elliptic Gaussian laser beam in collisionless magnetoplasma
AU - Saini, Nareshpal Singh
AU - Gill, Tarsem Singh
PY - 2006/7
Y1 - 2006/7
N2 - The problem of nonlinear self-focusing of elliptic Gaussian laser beam in collisionless magnetized plasma is studied using variation approach. The dynamics of the combined effects of nonlinearity and spatial diffraction is presented. With a and b as the beam width parameters of the beam along x and y directions, respectively, the phenomenon of cross-focusing is observed where focusing of a results in defocusing of b and vice versa. Although no stationary self-trapping is observed, oscillatory self-trapping occurs far below the threshold. The regularized phase is always negative.
AB - The problem of nonlinear self-focusing of elliptic Gaussian laser beam in collisionless magnetized plasma is studied using variation approach. The dynamics of the combined effects of nonlinearity and spatial diffraction is presented. With a and b as the beam width parameters of the beam along x and y directions, respectively, the phenomenon of cross-focusing is observed where focusing of a results in defocusing of b and vice versa. Although no stationary self-trapping is observed, oscillatory self-trapping occurs far below the threshold. The regularized phase is always negative.
KW - Elliptic
KW - Regularized phase
KW - Self-focusing
KW - Self-phase modulation
UR - http://www.scopus.com/inward/record.url?scp=33750161936&partnerID=8YFLogxK
U2 - 10.1017/S0263034606060605
DO - 10.1017/S0263034606060605
M3 - Article
AN - SCOPUS:33750161936
SN - 0263-0346
VL - 24
SP - 447
EP - 453
JO - Laser and Particle Beams
JF - Laser and Particle Beams
IS - 3
ER -