Observation of Forward Raman Scattering and Energetic Electrons in High Intensity, Sub-Picosecond Laser, Underdense Plasma Interaction Experiments

C.A. Coverdale; C.B. Darrow; B.A. Hammel; W.B. Mori; C. Decker; K.C. Tzeng; C. Joshi; C. Clayton

doi:10.1364/HRFTS.1994.PD4

High Field Interactions and Short Wavelength Generation
Technical Digest Series (Optica Publishing Group, 1994),
paper PD4
•https://doi.org/10.1364/HRFTS.1994.PD4

Observation of Forward Raman Scattering and Energetic Electrons in High Intensity, Sub-Picosecond Laser, Underdense Plasma Interaction Experiments

C.A. Coverdale, C.B. Darrow, B.A. Hammel, W.B. Mori, C. Decker, K.C. Tzeng, C. Joshi, and C. Clayton

High Resolution Fourier Transform Spectroscopy 1994

St. Malo France
22–25 August 1994
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C. A. Coverdale, C. B. Darrow, B. A. Hammel, W. B. Mori, C. Decker, K. C. Tzeng, C. Joshi, and C. Clayton, "Observation of Forward Raman Scattering and Energetic Electrons in High Intensity, Sub-Picosecond Laser, Underdense Plasma Interaction Experiments," in High Field Interactions and Short Wavelength Generation, Technical Digest Series (Optica Publishing Group, 1994), paper PD4.

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Abstract

Many theoretical and computer simulation results have been published recently involving the interaction of short pulse, high intensity lasers with underdense plasmas.^1-4 This is a new regime in which to study laser-plasma interactions since the length of the laser pulse is shorter than the Rayleigh range of the laser and the length of the plasma (cτ_L< L_R, L_p). Developments in laser technology over the last several years have made the experimental investigation of this regime possible. In this paper, we describe the first experimental observation of forward stimulated Raman scattering and energetic electrons from the interaction of a subpicosecond, high intensity laser with an underdense plasma.

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