Stability of intense laser propagation in an underdense hollow channel plasma
- Department of Electrical Engineering--Electrophysics, University of Southern California, Los Angeles, California 90089-0484 (United States)
- University of California, Los Angeles, California 90024 (United States)
The stability of very intense laser pulses ({ital I}{approx_lt}10{sup 18} W/cm{sup 2}) as they propagate through and are guided by a hollow channel in an underdense plasma is investigated. It is shown analytically and in two-dimensional (2-D) particle-in-cell (PIC) simulations that instabilities [Raman forward scatter (RFS)] would completely destroy the beam in homogeneous plasmas or parabolic channel plasmas. However, in hollow channel plasmas these instabilities can be completely suppressed. The results suggest that hollow plasma channels may be effective in transporting ultra-intense lasers over many Rayleigh lengths. {copyright} {ital 1996 American Institute of Physics.}
- Research Organization:
- University of Southern California
- DOE Contract Number:
- FG03-92ER40745
- OSTI ID:
- 282891
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 3; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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