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Experimental investigation of chirp pulse Raman amplification in plasma

Yang, Xue and Vieux, Gregory and Brunetti, Enrico and Farmer, John Patrick and Ersfeld, Bernhard and Wiggins, Mark and Issac, Riju and Welsh, Gregor H. and Jaroszynski, Dino (2011) Experimental investigation of chirp pulse Raman amplification in plasma. In: Harnessing relativistic plasma waves as novel radiation sources from terahertz to x-rays and beyond II. Proceedings of SPIE . SPIE--The International Society for Optical Engineering., Bellingham, 80750G. ISBN 9780819486653

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Abstract

Raman backscattering (RBS) in plasma has been proposed as a way of amplifying and compressing high intensity laser pulses for more than a decade. Not like the chirped pulse amplification (CPA) laser system, in which the laser intensity is limited by the damage threshold of conventional media, plasma is capable of tolerating ultrahigh laser intensities, together with RBS which is enable to transfer laser energy efficiently from a higher frequency pulse to a lower one, this scheme opens a scenario of the next generation of laser amplifiers. Experimental investigation has been carried out with a long (250 ps) pump pulse and a counter-propagating short (70 fs) probe pulse interacting in an under-dense preformed capillary plasma channel. Energy transfer from the pump pulse to the probe was observed. The guiding property was studied and the energy gain dependence of pump and probe energy were recorded.

Item type: Book Section
ID code: 40808
Keywords: experimental investigation , chirp pulse , raman amplification , plasma, laser plasma interaction;, capillary , chirped pulse, Physics
Subjects: Science > Physics
Department: Faculty of Science > Physics
Technology and Innovation Centre > Advanced Science and Technology
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Depositing user: Pure Administrator
Date Deposited: 08 Aug 2012 16:14
Last modified: 06 Sep 2014 08:39
URI: http://strathprints.strath.ac.uk/id/eprint/40808

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