‘‘Flicker’’ in small scale laser–plasma self-focusing
- 1 October 1988
- journal article
- letter
- Published by AIP Publishing in Physics of Fluids
- Vol. 31 (10) , 2750-2752
- https://doi.org/10.1063/1.866981
Abstract
Small amplitude, short wavelength ion acoustic waves in laser‐produced plasmas cause fluctuations in the trajectories of light rays that can lead to time‐dependent, self‐sustaining shifting of focal spots and a somewhat random redistribution of the light near the critical surface. This flickering is seen in simulations involving small scale beam inhomogeneities over a uniform background laser profile, which model the center of a realistic laser beam. The effect can cause significant intensity multiplication in long scale length high‐Z plasmas with only modest beam imperfections.Keywords
This publication has 14 references indexed in Scilit:
- Self-focusing and filamentation of laser light in high Z plasmasPhysics of Fluids, 1988
- Diffraction, self-focusing, and the geometrical optics limit in laser produced plasmasPhysics of Fluids, 1987
- Evidence in the second-harmonic emission for self-focusing of a laser pulse in a plasmaPhysics of Fluids, 1985
- Two-dimensional ray-trace calculations of thermal whole beam self-focusingPhysics of Fluids, 1985
- Hydrodynamics of thermal self-focusing in laser plasmasJournal of Applied Physics, 1984
- Filamentation Instability in Laser Produced PlasmasPublished by Springer Nature ,1984
- Use of induced spatial incoherence for uniform illumination of laser fusion targetsOptics Communications, 1983
- Theory of transient self-focusing of a CO2 laser pulse in a cold dense plasmaJournal of Applied Physics, 1983
- Filamentation and Subsequent Decay of Laser Light in PlasmasPhysical Review Letters, 1975
- Stability of filamentary structuresPhysics of Fluids, 1974