Nearly nondiffracting electron lattice beams generated by polygonal slits

A method for generating electron lattice beams carrying vortices using nanofabricated polygonal slits in a transmission electron microscope is proposed. Experimental and simulation study of the intensity of the beams verified their Bessel beam-like nearly nondiffracting behavior. Phase analysis usin...

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Veröffentlicht in:Journal of electron microscopy 2017-08, Vol.66 (4), p.295-299
Hauptverfasser: Nambu, Hiroki, Noguchi, Yuuki, Saitoh, Koh, Uchida, Masaya
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creator Nambu, Hiroki
Noguchi, Yuuki
Saitoh, Koh
Uchida, Masaya
description A method for generating electron lattice beams carrying vortices using nanofabricated polygonal slits in a transmission electron microscope is proposed. Experimental and simulation study of the intensity of the beams verified their Bessel beam-like nearly nondiffracting behavior. Phase analysis using a diffractive imaging method found arrays of quantized vortices, forming an electron beam lattice with cylindrical intensity distribution in the propagation direction. Such vortex lattice beams may be used in a variety of applications including nanofabrication, particle manipulation or a new electron imaging method.
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ispartof Journal of electron microscopy, 2017-08, Vol.66 (4), p.295-299
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1477-9986
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source Oxford University Press Journals All Titles (1996-Current); Alma/SFX Local Collection
subjects Electron beams
Electron imaging
Electron microscopes
Electrons
Nanofabrication
Particle beams
Simulation
Slits
Transmission electron microscopy
Vortices
title Nearly nondiffracting electron lattice beams generated by polygonal slits
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