Bougouffa, S. and Babiker, M. orcid.org/0000-0003-0659-5247 (2023) Absorption of hybrid fibre modes by Cs atoms in quadrupole transitions. Journal of Physics B: Atomic, Molecular and Optical Physics. 215002. ISSN 1361-6455
Abstract
We evaluate the rate of the absorption of an optical nanofibre mode by a Cs atom in an electric quadrupole transition. With the Cs atom localised near the outer surface of the optical nano-fibre, an interaction occurs between the atomic quadrupole tensor components and the gradients of the vector components of the electric field of a hybrid fibre mode. The absorption rate is evaluated as a function of the radial position of the atom from the fibre axis, assuming a specific value of the laser power and we use experimentally accessible parameters. We find that the absorption of the hybrid modes by the Cs atom decreases as the atom recedes away from the fibre axis and it formally vanishes at sufficiently large radial distances. Close to the fibre, however, the absorption rate for the input power chosen can be two orders of magnitude larger than the quadrupole de-excitation rate despite the moderate power used.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Funding Information: The authors are grateful to Professors Stephen Barnett, Sile Nic Chormaic, and Fam Le Kien for useful correspondence. Publisher Copyright: © 2023 The Author(s). Published by IOP Publishing Ltd. |
Keywords: | absorption rate,optical fibre modes,quadrupole interaction |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 22 Nov 2023 09:20 |
Last Modified: | 23 Jan 2025 00:34 |
Published Version: | https://doi.org/10.1088/1361-6455/acfd71 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/1361-6455/acfd71 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:205634 |
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Filename: Bougouffa_2023_J._Phys._B_At._Mol._Opt._Phys._56_215002.pdf
Description: Absorption of hybrid fibre modes by Cs atoms in quadrupole transitions
Licence: CC-BY 2.5