Abstract

We have studied the self-focusing/defocusing of a laser beam in a nonlinear dielectric when the laser is operating in the TEM₀₁ doughnut mode. The cylindrical asymmetry of the irradiance distribution increases inside the medium; the power gets concentrated around the points of maximum irradiance. The maximum irradiance in different directions (in a plane transverse to the direction of propagation) occurs at different values of r, the distance from the z axis. The polar representation of maximum irradiance in the transverse plane turns out to be a figure of eight.

© 1974 Optical Society of America

Thermal self-focusing of TEM₀₁ laser beams and ring-shape self-focusing of two specific mixtures of modes*

M. S. Sodha and V. P. Nayyar
J. Opt. Soc. Am. 65(9) 1027-1030 (1975)

Application of the boundary-diffraction-wave theory to gaussian beams*

Gabriel Otis
J. Opt. Soc. Am. 64(11) 1545-1550 (1974)

Mode dispersion in uniaxial optical waveguides*

W. K. Burns and J. Warner
J. Opt. Soc. Am. 64(4) 441-446 (1974)

Mutual coherence function and frequency spectrum of a laser beam propagating through atmospheric turbulence

Ronald L. Fante
J. Opt. Soc. Am. 64(5) 592-598 (1974)

Irradiance tailoring as a method of reducing thermal blooming in an absorbing medium

J. Wallace, I. Itzkan, and J. Camm
J. Opt. Soc. Am. 64(8) 1123-1128 (1974)