Theory of SRS of short laser pulse in underdense plasma

Nikolai E. Andreev; S. Yu. Kalmykov

doi:10.1117/12.238043

12 April 1996 Theory of SRS of short laser pulse in underdense plasma

Nikolai E. Andreev, S. Yu. Kalmykov

Proceedings Volume 2770, Laser Optics '95 and ICONO '95: Superintense Laser Fields; (1996) https://doi.org/10.1117/12.238043
Event: Laser Optics '95, 1995, St. Petersburg, Russian Federation

Abstract

Both analytical and numerical analysis of weakly coupled backward stimulated Raman scattering (BSRS) of a modulated laser pulse in an underdense plasma is made. In that regime the spectrum of a backscattered field contains only the usual Stokes lines from respective spectral components of a laser pulse, each narrow compared to (omega) _pe. Additionally, the intensity of radiation, backscattered from a given spectral component of a laser pulse, dramatically lowers in appearing in the pulse spectrum of another component, red-shifted by 2(omega) _pe with respect to the former. It is proved that a long-wavelength plasma wave with a relativistic phase velocity, propagating in plasma, affects the mode structure of weakly coupled BSRS. It is shown via direct numerical modeling that the strong pulse modulation visibly modifies the spectrum of strongly coupled BSRS. The linear theory clarifies some details of numerically modeled evolution of BSRS spectra due to nonlinear pulse evolution.

Citation Download Citation

Nikolai E. Andreev and S. Yu. Kalmykov "Theory of SRS of short laser pulse in underdense plasma", Proc. SPIE 2770, Laser Optics '95 and ICONO '95: Superintense Laser Fields, (12 April 1996); https://doi.org/10.1117/12.238043

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available