Study of chirped pulse amplification based on Raman backscattering

X. Yang; G. Vieux; A. Lyachev; J. Farmer; G. Raj; B. Ersfeld; E. Brunetti; M. Wiggins; R. Issac; D. A. Jaroszynski

doi:10.1117/12.821106

7 May 2009 Study of chirped pulse amplification based on Raman backscattering

X. Yang, G. Vieux, A. Lyachev, J. Farmer, G. Raj, B. Ersfeld, E. Brunetti, M. Wiggins, R. Issac, D. A. Jaroszynski

Proceedings Volume 7359, Harnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond; 73590Q (2009) https://doi.org/10.1117/12.821106
Event: SPIE Optics + Optoelectronics, 2009, Prague, Czech Republic

Abstract

Raman backscattering (RBS) in plasma is an attractive source of intense, ultrashort laser pulses, which has the potential asa basic for a new generation of laser amplifiers.1 Taking advantage of plasma, which can withstand extremely high power densities and can offer high efficiencies over short distances, Raman amplification in plasma could lead to significant reductions in both size and cost of high power laser systems. Chirped laser pulse amplification through RBS could be an effective way to transfer energy from a long pump pulse to a resonant counter propagating short probe pulse. The probe pulse is spectrally broadened in a controlled manner through self-phase modulation. Mechanism of chirped pulse Raman amplification has been studied, and features of supperradiant growth associated with the nonlinear stage are observed in the linear regime. Gain measurements are briefly summarized. The experimental measurements are in qualitative agreement with simulations and theoretical predictions.

Citation Download Citation

X. Yang, G. Vieux, A. Lyachev, J. Farmer, G. Raj, B. Ersfeld, E. Brunetti, M. Wiggins, R. Issac, and D. A. Jaroszynski "Study of chirped pulse amplification based on Raman backscattering", Proc. SPIE 7359, Harnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond, 73590Q (7 May 2009); https://doi.org/10.1117/12.821106

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