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APS » Journals » Phys. Rev. Lett. » Volume 93 » Issue 18
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Phys. Rev. Lett. 93, 184801 (2004) [4 pages]

Generation of 0.4-keV Femtosecond Electron Pulses using Impulsively Excited Surface Plasmons

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S. E. Irvine*, A. Dechant, and A. Y. Elezzabi
Ultrafast Photonics and Nano-Optics Laboratory, Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4

Received 25 March 2004; published 28 October 2004

We demonstrate the generation of 0.4-keV, sub-27 fs electron pulses using low-intensity laser pulses from a Ti:sapphire oscillator through the excitation of surface plasmon waves on a time scale within the plasmon lifetime. Modeling of the ponderomotive electron pulse acceleration yields electron energy spectra that are in excellent agreement with the observed ones. Our work opens a doorway for time-resolved experimentation using low-power, high-repetition rate laser pulses.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.184801
DOI:
10.1103/PhysRevLett.93.184801
PACS:
41.75.Jv, 73.20.Mf, 79.60.–i

*Electronic address: irvine@ece.ualberta.ca

 
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