Direct laser acceleration of 28 keV electrons at a single dielectric grating
Breuer J, Hommelhoff P (2014)
Publication Status: Published
Publication Type: Conference contribution, Conference Contribution
Publication year: 2014
Publisher: Elsevier
Book Volume: 52
Pages Range: 14-18
Event location: San Juan
DOI: 10.1016/jphpro.2014.06.004
Abstract
Direct laser acceleration exploiting the large optical field strength of short laser pulses and the proximity of a dielectric structure can support high acceleration gradients and may therefore lead to much smaller accelerators, with potential application in table-top free electron lasers. We report a proof-of-concept experiment demonstrating direct laser acceleration of non-relativistic 28 keV electrons derived from a conventional scanning electron microscope column at a single fused-silica grating. The electrons pass the grating as closely as 50 nm and interact with the third spatial harmonic, which is excited by 100 fs Titanium:sapphire laser pulses with a peak electric field of 2.85 GV/m. The observed maximum acceleration gradient of 25 MeV/m is already comparable to state-of-the-art RF structures. This work represents the first demonstration of scalable laser acceleration and of the inverse Smith-Purcell effect in the optical regime. © 2014 Elsevier B.V.
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Germany (DE)How to cite
APA:
Breuer, J., & Hommelhoff, P. (2014). Direct laser acceleration of 28 keV electrons at a single dielectric grating. In Proceedings of the Workshop on Physics and Applications of High Brightness Beams: Towards a 5th Generation Light Source (pp. 14-18). San Juan: Elsevier.
MLA:
Breuer, John, and Peter Hommelhoff. "Direct laser acceleration of 28 keV electrons at a single dielectric grating." Proceedings of the Workshop on Physics and Applications of High Brightness Beams: Towards a 5th Generation Light Source, San Juan Elsevier, 2014. 14-18.
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