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Tuning the surface Casimir-Polder interaction

Tuning the surface Casimir-Polder interaction
Tuning the surface Casimir-Polder interaction
Atoms are extremely accurate resonators. This property serves to build up precise sensors for time keeping, accelerometer and many others. However, their accuracy depend on their environment. For example, at the vicinity of a surface (metallic or dielectric) the atomic resonances are shifted by the Casimir-Polder interaction. The spatial dependency of this interaction (1/z3, in the non retarded regime) can be a crucial limitation for the development of compact sensors at the micrometer size scale. To address this issue, we explore the tunability property of the Casimir-Polder interaction with resonant surface plasmon modes. These latter are generated using nano-structured metallic layers. We found that the atomic resonance shift can be almost suppressed and the Purcell factor enhanced. More recently, we investigate quadrupole atomic transitions in surface plasmon. Those transitions are extremely weak in vacuum (~1 Hz) but can be enhanced if the spatial variation of the electromagnetic field become stronger as expected with localized surface plasmons. In this context, we will present our results, obtained with a cesium vapor, and discuss the potential application of creating new excitation channels in atomic spectrum.
SPIE
Chan, Eng Aik
8ddf6988-1cd5-445c-97e7-c3e0a9fef4f2
Adamo, Giorgio
73480dbd-5d3e-415a-b569-9606b3dbeecc
Aljunid, Syed Abdullah
f0362fae-6415-4b50-8a2c-1bc7139499f7
Laliotis, Athanasios
6c91c3ca-cf54-47e0-90ce-073415dd92f1
Ducloy, Martial
f8e2202a-0f34-4bfe-a0a1-4117ba7dc1b3
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6
Wilkowski, David
93d79cff-9009-4438-9e12-e2469bde4fa3
Shahriar, Selim M.
Scheuer, Jacob
Chan, Eng Aik
8ddf6988-1cd5-445c-97e7-c3e0a9fef4f2
Adamo, Giorgio
73480dbd-5d3e-415a-b569-9606b3dbeecc
Aljunid, Syed Abdullah
f0362fae-6415-4b50-8a2c-1bc7139499f7
Laliotis, Athanasios
6c91c3ca-cf54-47e0-90ce-073415dd92f1
Ducloy, Martial
f8e2202a-0f34-4bfe-a0a1-4117ba7dc1b3
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6
Wilkowski, David
93d79cff-9009-4438-9e12-e2469bde4fa3
Shahriar, Selim M.
Scheuer, Jacob

Chan, Eng Aik, Adamo, Giorgio, Aljunid, Syed Abdullah, Laliotis, Athanasios, Ducloy, Martial, Zheludev, Nikolay and Wilkowski, David (2019) Tuning the surface Casimir-Polder interaction. Shahriar, Selim M. and Scheuer, Jacob (eds.) In Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology. vol. 10934, SPIE.. (doi:10.1117/12.2515408).

Record type: Conference or Workshop Item (Paper)

Abstract

Atoms are extremely accurate resonators. This property serves to build up precise sensors for time keeping, accelerometer and many others. However, their accuracy depend on their environment. For example, at the vicinity of a surface (metallic or dielectric) the atomic resonances are shifted by the Casimir-Polder interaction. The spatial dependency of this interaction (1/z3, in the non retarded regime) can be a crucial limitation for the development of compact sensors at the micrometer size scale. To address this issue, we explore the tunability property of the Casimir-Polder interaction with resonant surface plasmon modes. These latter are generated using nano-structured metallic layers. We found that the atomic resonance shift can be almost suppressed and the Purcell factor enhanced. More recently, we investigate quadrupole atomic transitions in surface plasmon. Those transitions are extremely weak in vacuum (~1 Hz) but can be enhanced if the spatial variation of the electromagnetic field become stronger as expected with localized surface plasmons. In this context, we will present our results, obtained with a cesium vapor, and discuss the potential application of creating new excitation channels in atomic spectrum.

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More information

Published date: March 2019
Venue - Dates: SPIE OPTO 10934 Conference on Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology, 2019-02-02 - 2019-02-07

Identifiers

Local EPrints ID: 442124
URI: http://eprints.soton.ac.uk/id/eprint/442124
PURE UUID: b678b22d-1711-40eb-8370-3cf973e7adc8
ORCID for Nikolay Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 07 Jul 2020 16:49
Last modified: 29 Jul 2020 01:31

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Contributors

Author: Eng Aik Chan
Author: Giorgio Adamo
Author: Syed Abdullah Aljunid
Author: Athanasios Laliotis
Author: Martial Ducloy
Author: David Wilkowski
Editor: Selim M. Shahriar
Editor: Jacob Scheuer

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