Quadrupole excitation of atoms with tightly focused Laguerre-Gaussian beam
Quadrupole excitation of atoms with tightly focused Laguerre-Gaussian beam
This article investigates the quadrupole excitation of a trapped atom exposed to the
tightly focused Laguerre-Gaussian (LG) beams with parallel and antiparallel spin angular momentum (SAM) and orbital angular momentum (OAM) under nonparaxial conditions. The Rabi frequency profile of allowed quadrupole transition channels, modified by SAM and OAM interaction, in the focal plane is provided. In the case of antiparallel SAM and OAM, the excitation probability undergoes substantial modification due to the considerable contribution of longitudinal intensity variations in tightly focused condition. The findings offer insights into controlling localized atom transition, including OAM transfer, with potential applications in qudit-based technologies.
Mashhadi, Leila
2e37eb03-7421-4642-bc69-88bc5d049e29
Shayeganrad, Gholamreza
8ea55a9a-4fe2-49df-a0f4-55fa81596dab
Mashhadi, Leila
2e37eb03-7421-4642-bc69-88bc5d049e29
Shayeganrad, Gholamreza
8ea55a9a-4fe2-49df-a0f4-55fa81596dab
Mashhadi, Leila and Shayeganrad, Gholamreza
(2024)
Quadrupole excitation of atoms with tightly focused Laguerre-Gaussian beam.
Optics Express.
(In Press)
Abstract
This article investigates the quadrupole excitation of a trapped atom exposed to the
tightly focused Laguerre-Gaussian (LG) beams with parallel and antiparallel spin angular momentum (SAM) and orbital angular momentum (OAM) under nonparaxial conditions. The Rabi frequency profile of allowed quadrupole transition channels, modified by SAM and OAM interaction, in the focal plane is provided. In the case of antiparallel SAM and OAM, the excitation probability undergoes substantial modification due to the considerable contribution of longitudinal intensity variations in tightly focused condition. The findings offer insights into controlling localized atom transition, including OAM transfer, with potential applications in qudit-based technologies.
Text
Quadrupole excitation of atom with tightly focused LG-beam_revised2
- Accepted Manuscript
More information
Accepted/In Press date: 11 March 2024
Identifiers
Local EPrints ID: 487980
URI: http://eprints.soton.ac.uk/id/eprint/487980
ISSN: 1094-4087
PURE UUID: 13d84696-d868-4b32-8b2a-1967a8e63375
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Date deposited: 12 Mar 2024 17:38
Last modified: 18 Mar 2024 03:49
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Author:
Leila Mashhadi
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