The influence of subsidiary Langmuir decay on the spectrum of stimulated Raman scattering

The saturation of stimulated Raman scattering (SRS) from plasmas produced by visible or ultraviolet (UV) lasers is discussed. A correspondence is reported between relatively strong plasma‐wave damping and relatively large spectral intensity in the observed SRS spectra. This observation is interpreted by the hypothesis that SRS saturates at roughly the level of marginal stability for Langmuir decay.

[1]  M. Rosenbluth,et al.  Raman and Brillouin scattering of electromagnetic waves in inhomogeneous plasmas , 1974 .

[2]  W. Rozmus,et al.  Nonlinear evolution of stimulated Raman scattering in homogeneous plasmas , 1987 .

[3]  R. P. Drake.  The scaling of absolutely unstable, stimulated Raman scattering from planar, laser‐produced plasmas , 1989 .

[4]  Martin Richardson,et al.  Stimulated Raman scattering from uv laser-produced plasmas , 1982 .

[5]  Rose,et al.  Nonlinear coupling of stimulated Raman and Brillouin scattering in laser-plasma interactions. , 1987, Physical review letters.

[6]  R. P. Drake,et al.  Narrow Raman spectra: the competition between collisional and Landau damping , 1989 .

[7]  D. Phillion,et al.  High-energy electron production by the Raman and 2. omega. /sub p/e instabilities in a 1. 064-. mu. m-laser-produced underdense plasma , 1982 .

[8]  G. Busch,et al.  Laser and plasma conditions at the onset of Raman scattering in an underdense plasma , 1986 .

[9]  Villeneuve,et al.  Suppression of stimulated Raman scattering by the seeding of stimulated Brillouin scattering in a laser-produced plasma. , 1987, Physical review letters.

[10]  Christopher E. Clayton,et al.  Experimental studies of Raman scattering from foam targets using a 0.35 μm laser beam , 1987 .

[11]  M. Goldman,et al.  Strong turbulence of plasma waves , 1984 .

[12]  Laser-intensity scaling experiments in long-scalelength, laser-produced plasmas , 1988 .

[13]  Rose,et al.  Coexistence of parametric decay cascades and caviton collapse at subcritical densities. , 1991, Physical review letters.

[14]  M. Goldman,et al.  Radiation-Induced Instability of Electron Plasma Oscillations , 1965 .

[15]  G. Bonnaud,et al.  Nonlinear Raman scattering behavior with Langmuir and sound waves coupling in a homogeneous plasma , 1990 .

[16]  McLean,et al.  Laser-target interaction with induced spatial incoherence. , 1986, Physical review letters.

[17]  M. Goldman,et al.  Parametrically Excited Plasma Fluctuations , 1967 .

[18]  W. Kruer.  Nonlinear estimates of Brillouin scatter in plasma , 1980 .

[19]  Young,et al.  Reduction of emission in the stimulated Raman scattering frequency band to thermal noise levels by collisional damping in a laser-produced plasma. , 1989, Physical review. A, General physics.

[20]  R. S. Craxton,et al.  Convective stimulated Raman scattering instability in UV laser plasmas , 1984 .

[21]  Young,et al.  Drake, Williams, Young, Estabrook, Kruer, Baldis, and Johnston reply: , 1988, Physical review letters.

[22]  D. Villeneuve,et al.  Electron Plasma-Wave Production by Stimulated Raman Scattering: Competition with Stimulated Brillouin Scattering , 1984 .

[23]  Young,et al.  Competition between the stimulated Raman and Brillouin scattering instabilities in 0.35- microm irradiated CH foil targets. , 1989, Physical review letters.

[24]  J. Heikkinen,et al.  Intensity saturation of stimulated Raman scattering by ion‐wave coupling , 1986 .

[25]  R. Short,et al.  New Model of Raman Spectra in Laser-Produced Plasma , 1984 .

[26]  Donald W. Phillion,et al.  Studies of Raman scattering from overdense targets irradiated by several kilojoules of 0.53 μm laser light , 1988 .