Chirped pulse Raman amplification in plasma: high gain measurements

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Vieux, G. and Yang, X. and Lyachev, A. and Ersfeld, B. and Farmer, J. and Brunetti, E. and Wiggins, Samuel and Issac, R. and Raj, G. and Jaroszynski, D. A.; Jaroszynski, DA and Rousse, A, eds. (2009) Chirped pulse Raman amplification in plasma: high gain measurements. In: Conference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond, 2009-04-21 - 2009-04-23. (https://doi.org/10.1117/12.820983)

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Abstract

High power short pulse lasers are usually based on chirped pulse amplification (CPA), where a frequency chirped and temporarily stretched ``seed'' pulse is amplified by a broad-bandwidth solid state medium, which is usually pumped by a monochromatic ``pump'' laser. Here, we demonstrate the feasibility of using chirped pulse Raman amplification (CPRA) as a means of amplifying short pulses in plasma. In this scheme, a short seed pulse is amplified by a stretched and chirped pump pulse through Raman backscattering in a plasma channel. Unlike conventional CPA, each spectral component of the seed is amplified at different longitudinal positions determined by the resonance of the seed, pump and plasma wave, which excites a density echelon that acts as a "chirped'" mirror and simultaneously backscatters and compresses the pump. Experimental evidence shows that it has potential as an ultra-broad bandwidth linear amplifier which dispenses with the need for large compressor gratings.

ORCID iDs

Vieux, G. ORCID logoORCID: https://orcid.org/0000-0003-4040-4117, Yang, X., Lyachev, A., Ersfeld, B. ORCID logoORCID: https://orcid.org/0000-0001-5597-9429, Farmer, J., Brunetti, E. ORCID logoORCID: https://orcid.org/0000-0001-8302-9762, Wiggins, Samuel ORCID logoORCID: https://orcid.org/0000-0001-7804-6146, Issac, R., Raj, G. and Jaroszynski, D. A. ORCID logoORCID: https://orcid.org/0000-0002-3006-5492; Jaroszynski, DA and Rousse, A
  • Item type:Conference or Workshop Item(Paper)
    ID code:30198
    Dates:
    Date
    Event
    2009
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:13 Apr 2011 09:18
    Last modified:02 Dec 2024 01:33
    URI:https://strathprints.strath.ac.uk/id/eprint/30198
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