Phys. Rev. Lett. 92, 054801 (2004) [4 pages]Demonstration of High-Trapping Efficiency and Narrow Energy Spread in a Laser-Driven AcceleratorReceived 25 August 2003; revised 23 January 2004; published 6 February 2004 Laser-driven electron accelerators (laser linacs) offer the potential for enabling much more economical and compact devices. However, the development of practical and efficient laser linacs requires accelerating a large ensemble of electrons together (“trapping”) while keeping their energy spread small. This has never been realized before for any laser acceleration system. We present here the first demonstration of high-trapping efficiency and narrow energy spread via laser acceleration. Trapping efficiencies of up to 80% and energy spreads down to 0.36% (1σ) were demonstrated. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.054801
DOI:
10.1103/PhysRevLett.92.054801
PACS:
41.75.Jv, 41.60.Cr
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