Low-energy ions from laser-cooled atoms
Low-energy ions from laser-cooled atoms
We report the features of an ion source based on two-color photoionization of a laser-cooled cesium beam outsourced from a pyramidal magneto-optical trap. The ion source operates in continuous or pulsed mode. At acceleration voltages below 300 V, it delivers some ten ions per bunch with a relative energy spread ΔUrms/U≃0.032, as measured through the retarding field-energy-analyzer approach. Space-charge effects are negligible thanks to the low ion density attained in the interaction volume. The performances of the ion beam in a configuration using focused laser beams are extrapolated on the basis of the experimental results. Calculations demonstrate that our low-energy and low-current ion beam can be attractive for the development of emerging technologies requiring the delivery of a small amount of charge, down to the single-ion level and its eventual focusing in the 10-nm range.
Shayeganrad, Gholamreza
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Fioretti, Andrea
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Guerri, Irne
41e46df4-4d42-4b0d-85bc-4993c6af3bae
Tantussi, Francesco Tantussi
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Ciampini, D.
de08ce1e-dcd2-45df-aa4b-4fa7893164cb
Allegrini, Maria
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Viteau, M.
f90b321d-3bd0-47f2-9002-7c969d1e0cca
Fuso, Francesco
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27 May 2016
Shayeganrad, Gholamreza
8ea55a9a-4fe2-49df-a0f4-55fa81596dab
Fioretti, Andrea
df44df08-7d5f-4cc0-9d95-3f5b396b5176
Guerri, Irne
41e46df4-4d42-4b0d-85bc-4993c6af3bae
Tantussi, Francesco Tantussi
78e1a467-f81d-4d7a-8e09-8586d0ba4eb6
Ciampini, D.
de08ce1e-dcd2-45df-aa4b-4fa7893164cb
Allegrini, Maria
94102984-a404-4978-9fd5-f58283b4d571
Viteau, M.
f90b321d-3bd0-47f2-9002-7c969d1e0cca
Fuso, Francesco
6fdb3cb5-2c67-400a-a7ae-b23788f6664a
Shayeganrad, Gholamreza, Fioretti, Andrea, Guerri, Irne, Tantussi, Francesco Tantussi, Ciampini, D., Allegrini, Maria, Viteau, M. and Fuso, Francesco
(2016)
Low-energy ions from laser-cooled atoms.
Physical Review Applied, 5, [054020].
(doi:10.1103/PhysRevApplied.5.054020).
Abstract
We report the features of an ion source based on two-color photoionization of a laser-cooled cesium beam outsourced from a pyramidal magneto-optical trap. The ion source operates in continuous or pulsed mode. At acceleration voltages below 300 V, it delivers some ten ions per bunch with a relative energy spread ΔUrms/U≃0.032, as measured through the retarding field-energy-analyzer approach. Space-charge effects are negligible thanks to the low ion density attained in the interaction volume. The performances of the ion beam in a configuration using focused laser beams are extrapolated on the basis of the experimental results. Calculations demonstrate that our low-energy and low-current ion beam can be attractive for the development of emerging technologies requiring the delivery of a small amount of charge, down to the single-ion level and its eventual focusing in the 10-nm range.
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Accepted/In Press date: 12 June 2015
Published date: 27 May 2016
Identifiers
Local EPrints ID: 479113
URI: http://eprints.soton.ac.uk/id/eprint/479113
ISSN: 2331-7019
PURE UUID: 2bae0aa9-8dfc-46d4-9457-03d9b5c84b53
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Date deposited: 20 Jul 2023 16:35
Last modified: 17 Mar 2024 03:53
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Contributors
Author:
Gholamreza Shayeganrad
Author:
Andrea Fioretti
Author:
Irne Guerri
Author:
Francesco Tantussi Tantussi
Author:
D. Ciampini
Author:
Maria Allegrini
Author:
M. Viteau
Author:
Francesco Fuso
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