Quadrupole excitation of atoms with tightly focused Laguerre-Gaussian beams
Quadrupole excitation of atoms with tightly focused Laguerre-Gaussian beams
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.
12127-12140
Mashhadi, Leila
f8b49b5c-10e7-4005-a0a5-b57a8eaa31bb
Shayeganrad, Gholamreza
8ea55a9a-4fe2-49df-a0f4-55fa81596dab
25 March 2024
Mashhadi, Leila
f8b49b5c-10e7-4005-a0a5-b57a8eaa31bb
Shayeganrad, Gholamreza
8ea55a9a-4fe2-49df-a0f4-55fa81596dab
Mashhadi, Leila and Shayeganrad, Gholamreza
(2024)
Quadrupole excitation of atoms with tightly focused Laguerre-Gaussian beams.
Optics Express, 32 (7), .
(doi:10.1364/OE.500848).
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.
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oe-32-7-12127
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Published date: 25 March 2024
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Local EPrints ID: 489251
URI: http://eprints.soton.ac.uk/id/eprint/489251
ISSN: 1094-4087
PURE UUID: 779dfb6a-0aef-42d1-935f-0ee102ef6a25
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Date deposited: 18 Apr 2024 16:46
Last modified: 19 Apr 2024 01:55
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Author:
Leila Mashhadi
Author:
Gholamreza Shayeganrad
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