Necessary and sufficient conditions for self-focusing of short ultraintense laser pulse in underdense plasma

Journal Article · Mon Apr 05 04:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.70.2082· OSTI ID:6652055

Chen, X L; Sudan, R N ^[1]

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1. Laboratory of Plasma Studies, Cornell University, Ithaca, New York 14853 (United States)

We analyze the propagation of a short intense laser pulse in underdense cold plasma. When no electron cavitation is present, a global invariant [ital H] is obtained, and its relation with self-focusing is studied. For relativistic self-focusing, [ital H][lt]0 is a sufficient and necessary condition. For relativistic and ponderomotive self-focusing, [ital H][lt]0 is sufficient but not necessary. Numerical simulations are performed to confirm the above points.

• OSTI ID: 6652055
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:14; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
DATA
ELECTRIC POTENTIAL
ELECTROMAGNETIC RADIATION
ENERGY RANGE
FUNCTIONS
GAUSS FUNCTION
INFORMATION
LASER RADIATION
NONLINEAR OPTICS
NUMERICAL DATA
OPTICS
PLASMA
PULSES
RADIATIONS
RELATIVISTIC RANGE
SIMULATION
THEORETICAL DATA
TIME DEPENDENCE
WAVE PROPAGATION