Third-harmonic generation with ultrahigh-intensity laser pulses

Journal Article · Mon Aug 03 00:00:00 EDT 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.772· OSTI ID:7008783

Rax, J M; Fisch, N J ^[1]

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1. Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08540 (United States)

When an intense, plane-polarized, laser pulse interacts with a plasma, the relativistic nonlinearities induce a third-harmonic polarization. A phase-locked growth of a third-harmonic wave can take place, but the difference between the nonlinear dispersion of the pump and driven waves leads to a rapid unlocking, resulting in a saturation. What become third-harmonic amplitude oscillations are identified here, and the nonlinear phase velocity and the renormalized electron mass due to plasmon screening are calculated. A simple phase-matching scheme, based on a resonant density modulation, is then proposed and analyzed.

• DOE Contract Number: AC02-76CH03073
• OSTI ID: 7008783
• Journal Information: Physical Review Letters; (United States), Vol. 69:5; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LASER-PRODUCED PLASMA
HARMONIC GENERATION
AMPLITUDES
ELECTRONS
LASER RADIATION
MASS SPECTRA
NONLINEAR PROBLEMS
OSCILLATIONS
PHASE VELOCITY
PLASMONS
POLARIZATION
PULSES
RELATIVISTIC PLASMA
RENORMALIZATION
RESONANCE
SCREENING
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FREQUENCY MIXING
LEPTONS
PLASMA
QUASI PARTICLES
RADIATIONS
SPECTRA
VELOCITY
700350* - Plasma Production
Heating
Current Drive
& Interactions- (1992-)