Electromagnetically induced guiding and superradiant amplification of counter-propagating lasers in plasma

Journal Article · Thu Jul 01 04:00:00 EDT 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.58864· OSTI ID:687948

Shvets, G; Fisch, N J ^[1]; Pukhov, A ^[2]

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1. Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)
2. Max-Plank-Institut fur for Quantenoptik, D-85748 Garching (Germany)

The interaction of counter-propagating laser pulses in a plasma is considered. When the frequencies of the two lasers are close, nonlinear modification of the refraction index results in the mutual focusing of the two beams. A short (of order the plasma period) laser pulse can be nonlinearly focused by a long counter-propagating beam which extends over the entire guiding length. It is also demonstrated that a short ({lt}1/{omega}{sub p}) laser pulse can be superradiantly amplified by a counter-propagating long low-intensity pump while remaining ultra-short. Particle-in-Cell simulations indicate that pump depletion can be as high as 40{percent}. This implies that the long pump is efficiently compressed in time without frequency chirping and pulse stretching, making the superradiant amplification an interesting alternative to the conventional method of producing ultra-intense pulses by the chirped-pulse amplification. {copyright} {ital 1999 American Institute of Physics.}

• Sponsoring Organization: USDOE
• DOE Contract Number: FG03-98DP00210
• OSTI ID: 687948
• Report Number(s): CONF-980742--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 472; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAT WAVE ACCELERATORS
ELECTRODYNAMICS
ELECTRON BEAMS
LASER RADIATION
LIGHT TRANSMISSION
LINEAR ACCELERATORS
PLASMA
PULSE TECHNIQUES
WAKEFIELD ACCELERATORS