Third-harmonic generation with ultrahigh-intensity laser pulses

Journal Article · Mon Aug 03 04:00:00 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), Journal Name: Physical Review Letters; (United States) Vol. 69:5; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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