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Angle-resolved characterization and ray-optics modeling of fiber-optic sensors

Angle-resolved characterization and ray-optics modeling of fiber-optic sensors
Angle-resolved characterization and ray-optics modeling of fiber-optic sensors
We investigate the spontaneous emission rate of a two-level quantum emitter near a graphene-coated substrate under the influence of an external magnetic field or strain induced pseudomagnetic field. We demonstrate that the application of the magnetic field can substantially increase or decrease the decay rate. We show that a suppression as large as 99% in the Purcell factor is achieved even for moderate magnetic fields. The emitter's lifetime is a discontinuous function of |B|, which is a direct consequence of the occurrence of discrete Landau levels in graphene. We demonstrate that, in the near-field regime, the magnetic field enables an unprecedented control of the decay pathways into which the photon/polariton can be emitted. Our findings strongly suggest that a magnetic field could act as an efficient agent for on-demand, active control of light-matter interactions in graphene at the quantum level.
0733-8724
5210-5217
Chen, George Y.
b766d3f7-a6dc-4c15-8f00-17ad044348c1
Codemard, Christophe
3aa50483-b61c-4e7e-b178-c9a88bb47bef
Gorman, Philip
db066f89-4918-4ddc-bab5-4dcec70354b7
Chan, Jaclyn
7339d99a-1d44-4313-91a7-8d2452b21069
Zervas, Michael
1840a474-dd50-4a55-ab74-6f086aa3f701
Chen, George Y.
b766d3f7-a6dc-4c15-8f00-17ad044348c1
Codemard, Christophe
3aa50483-b61c-4e7e-b178-c9a88bb47bef
Gorman, Philip
db066f89-4918-4ddc-bab5-4dcec70354b7
Chan, Jaclyn
7339d99a-1d44-4313-91a7-8d2452b21069
Zervas, Michael
1840a474-dd50-4a55-ab74-6f086aa3f701

Chen, George Y., Codemard, Christophe, Gorman, Philip, Chan, Jaclyn and Zervas, Michael (2015) Angle-resolved characterization and ray-optics modeling of fiber-optic sensors. IEEE Journal of Lightwave Technology, 33 (24), 5210-5217. (doi:10.1109/JLT.2015.2500338).

Record type: Article

Abstract

We investigate the spontaneous emission rate of a two-level quantum emitter near a graphene-coated substrate under the influence of an external magnetic field or strain induced pseudomagnetic field. We demonstrate that the application of the magnetic field can substantially increase or decrease the decay rate. We show that a suppression as large as 99% in the Purcell factor is achieved even for moderate magnetic fields. The emitter's lifetime is a discontinuous function of |B|, which is a direct consequence of the occurrence of discrete Landau levels in graphene. We demonstrate that, in the near-field regime, the magnetic field enables an unprecedented control of the decay pathways into which the photon/polariton can be emitted. Our findings strongly suggest that a magnetic field could act as an efficient agent for on-demand, active control of light-matter interactions in graphene at the quantum level.

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More information

Accepted/In Press date: 11 November 2015
Published date: 12 November 2015
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 398334
URI: https://eprints.soton.ac.uk/id/eprint/398334
ISSN: 0733-8724
PURE UUID: daefc0f5-295b-496d-8b12-581d2a206236
ORCID for Michael Zervas: ORCID iD orcid.org/0000-0002-0651-4059

Catalogue record

Date deposited: 22 Jul 2016 10:32
Last modified: 01 Oct 2019 01:02

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