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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 9 — May. 1, 2006
  • pp: 4115–4127

Femtosecond electron pulse gating using surface plasmons

S. E. Irvine and A. Y. Elezzabi  »View Author Affiliations


Optics Express, Vol. 14, Issue 9, pp. 4115-4127 (2006)
http://dx.doi.org/10.1364/OE.14.004115


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Abstract

We present a theoretical investigation of a novel all-optical method for electron beam gating via ponderomotive surface plasmon (SP) interaction. Using femtosecond optical pulses, large electric field gradient SP waves are launched on the surface of a metal film and selectively gate an external electron beam. It is shown that this method can generate electron pulses having similar durations as the laser pulse. The ultrashort electron packets are highly directional and examination of their spatial distribution reveals a large degree of spatial microbunching. Angle-resolved energy spectra of the electrons reveal that their final velocities are highly correlated with exit angle. Furthermore, it is demonstrated that the SP gating technique can be utilized for temporal characterization of ultrashort electron pulses with durations <100 fs.

© 2006 Optical Society of America

OCIS Codes
(190.4350) Nonlinear optics : Nonlinear optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
(320.7120) Ultrafast optics : Ultrafast phenomena

ToC Category:
Optics at Surfaces

History
Original Manuscript: February 27, 2006
Revised Manuscript: April 10, 2006
Manuscript Accepted: April 25, 2006
Published: May 1, 2006

Citation
S. E. Irvine and A. Y. Elezzabi, "Femtosecond electron pulse gating using surface plasmons," Opt. Express 14, 4115-4127 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-9-4115


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