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  • Vol. 37, Iss. 13 — Jul. 1, 2012
  • pp: 2442–2444

Electron acceleration driven by ultrashort and nonparaxial radially polarized laser pulses

Vincent Marceau, Alexandre April, and Michel Piché  »View Author Affiliations


Optics Letters, Vol. 37, Issue 13, pp. 2442-2444 (2012)
http://dx.doi.org/10.1364/OL.37.002442


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Abstract

Exact closed-form solutions to Maxwell’s equations are used to investigate the acceleration of electrons in vacuum driven by ultrashort and nonparaxial radially polarized laser pulses. We show that the threshold power above which significant acceleration takes place is greatly reduced by using a tighter focus. Moreover, electrons accelerated by tightly focused single-cycle laser pulses may reach around 80% of the theoretical energy gain limit, about twice the value previously reported with few-cycle paraxial pulses. Our results demonstrate that the direct acceleration of electrons in vacuum is well within reach of current laser technology.

© 2012 Optical Society of America

OCIS Codes
(320.7090) Ultrafast optics : Ultrafast lasers
(320.7120) Ultrafast optics : Ultrafast phenomena
(350.4990) Other areas of optics : Particles
(020.2649) Atomic and molecular physics : Strong field laser physics

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: April 12, 2012
Manuscript Accepted: April 23, 2012
Published: June 18, 2012

Virtual Issues
June 29, 2012 Spotlight on Optics

Citation
Vincent Marceau, Alexandre April, and Michel Piché, "Electron acceleration driven by ultrashort and nonparaxial radially polarized laser pulses," Opt. Lett. 37, 2442-2444 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-13-2442


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