Dielectric laser acceleration of nonrelativistic electrons at a single fused silica grating structure: Experimental part

Recently, our group has demonstrated dielectric laser acceleration of nonrelativistic electrons at a scalable fused silica grating [J. Breuer and P. Hommelhoff, Phys. Rev. Lett. 111, 134803 (2013)]. This represents a demonstration of the inverse Smith-Purcell effect in the optical regime. The third...

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Main Authors: John Breuer, Roswitha Graf, Alexander Apolonski, Peter Hommelhoff
Format: Article
Language:English
Published: American Physical Society 2014-02-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.17.021301
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author John Breuer
Roswitha Graf
Alexander Apolonski
Peter Hommelhoff
author_facet John Breuer
Roswitha Graf
Alexander Apolonski
Peter Hommelhoff
author_sort John Breuer
collection DOAJ
description Recently, our group has demonstrated dielectric laser acceleration of nonrelativistic electrons at a scalable fused silica grating [J. Breuer and P. Hommelhoff, Phys. Rev. Lett. 111, 134803 (2013)]. This represents a demonstration of the inverse Smith-Purcell effect in the optical regime. The third spatial harmonic of the grating, which is excited by Titanium:sapphire laser pulses, synchronously accelerates 28 keV electrons derived from an electron microscope column. We observe a maximum acceleration gradient of 25 MeV/m. Here we present the experimental setup in detail. We describe grating-related issues such as surface charging and alignment as well as damage threshold measurements. A detailed explanation of the detection scheme is given. Furthermore, extensive numerical simulations are discussed, which agree well with the experimental results.
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spelling doaj.art-a91f1769f49e4f8caa23d902d6f92cb32022-12-21T18:51:53ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022014-02-0117202130110.1103/PhysRevSTAB.17.021301Dielectric laser acceleration of nonrelativistic electrons at a single fused silica grating structure: Experimental partJohn BreuerRoswitha GrafAlexander ApolonskiPeter HommelhoffRecently, our group has demonstrated dielectric laser acceleration of nonrelativistic electrons at a scalable fused silica grating [J. Breuer and P. Hommelhoff, Phys. Rev. Lett. 111, 134803 (2013)]. This represents a demonstration of the inverse Smith-Purcell effect in the optical regime. The third spatial harmonic of the grating, which is excited by Titanium:sapphire laser pulses, synchronously accelerates 28 keV electrons derived from an electron microscope column. We observe a maximum acceleration gradient of 25 MeV/m. Here we present the experimental setup in detail. We describe grating-related issues such as surface charging and alignment as well as damage threshold measurements. A detailed explanation of the detection scheme is given. Furthermore, extensive numerical simulations are discussed, which agree well with the experimental results.http://doi.org/10.1103/PhysRevSTAB.17.021301
spellingShingle John Breuer
Roswitha Graf
Alexander Apolonski
Peter Hommelhoff
Dielectric laser acceleration of nonrelativistic electrons at a single fused silica grating structure: Experimental part
Physical Review Special Topics. Accelerators and Beams
title Dielectric laser acceleration of nonrelativistic electrons at a single fused silica grating structure: Experimental part
title_full Dielectric laser acceleration of nonrelativistic electrons at a single fused silica grating structure: Experimental part
title_fullStr Dielectric laser acceleration of nonrelativistic electrons at a single fused silica grating structure: Experimental part
title_full_unstemmed Dielectric laser acceleration of nonrelativistic electrons at a single fused silica grating structure: Experimental part
title_short Dielectric laser acceleration of nonrelativistic electrons at a single fused silica grating structure: Experimental part
title_sort dielectric laser acceleration of nonrelativistic electrons at a single fused silica grating structure experimental part
url http://doi.org/10.1103/PhysRevSTAB.17.021301
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