Stabilization of transverse solitary waves by a nonlocal response of the nonlinear medium
- 1 December 1993
- journal article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 48 (6) , 4583-4587
- https://doi.org/10.1103/physreva.48.4583
Abstract
Optical pumping of atomic vapors can lead to self-focusing of resonant laser beams. The saturation of the optical pumping process at low intensity allows the study of transverse solitons in the form of self-trapped laser beams, using low-power cw lasers. The long lifetime of the optically pumped atoms allows the atomic diffusion to transport the excitation away from the interaction region. Numerical simulations show that the resulting nonlocal response of the medium represents an important mechanism that stabilizes the self-trapped beam. The theoretical predictions are confirmed by experimental results from sodium vaporKeywords
This publication has 28 references indexed in Scilit:
- Optical beams in saturable self-focusing mediaPhysical Review A, 1992
- Self-induced optical fibers: spatial solitary wavesOptics Letters, 1991
- Observation of spatial optical solitons in a nonlinear glass waveguideOptics Letters, 1990
- Quasi-steady state self-trapping of first, second and third order subnanosecond soliton beamsOptics Communications, 1988
- Stable self-trapping of laser beams: Observation in a nonlinear planar waveguideOptics Communications, 1988
- cw Self-Focusing and Self-Trapping of Light in Sodium VaporPhysical Review Letters, 1974
- Dynamical Formation of a Small-Scale FilamentPhysical Review Letters, 1968
- SELF-TRAPPING IN MEDIA WITH SATURATION OF THE NONLINEAR INDEXApplied Physics Letters, 1968
- Self-Trapping of Optical BeamsPhysical Review Letters, 1964
- Comments on Nonlinear Wave Equations as Models for Elementary ParticlesJournal of Mathematical Physics, 1964