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26 April 2024

» pubmed » pmid15089478

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Enhanced acceleration of injected electrons in a laser-beat-wave-induced plasma channel
S Ya Tochitsky ; R Narang ; C V Filip ; P Musumeci ; C E Clayton ; R B Yoder ; K A Marsh ; J B Rosenzweig ; C Pellegrini ; C Joshi ;
Date:	5 Mar 2004
Journal:	Phys Rev Lett, 92 (9), 095004
Abstract:	Enhanced energy gain of externally injected electrons by a approximately 3 cm long, high-gradient relativistic plasma wave (RPW) is demonstrated. Using a CO2 laser beat wave of duration longer than the ion motion time across the laser spot size, a laser self-guiding process is initiated in a plasma channel. Guiding compensates for ionization-induced defocusing (IID) creating a longer plasma, which extends the interaction length between electrons and the RPW. In contrast to a maximum energy gain of 10 MeV when IID is dominant, the electrons gain up to 38 MeV energy in a laser-beat-wave-induced plasma channel.
Source:	PubMed, pmid15089478
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