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Observation of energy transfer at optical frequency to an ultrathin silicon waveguide

Observation of energy transfer at optical frequency to an ultrathin silicon waveguide
Observation of energy transfer at optical frequency to an ultrathin silicon waveguide
Energy transfer from a submonolayer of rhodamine 6G molecules to a 130 nm thick crystalline silicon (Si) waveguide is investigated. The dependence of the fluorescence lifetime of rhodamine on its distance to the Si waveguide is characterized and modeled successfully by a classical dipole model. The energy transfer process could be regarded as photon tunneling into the Si waveguide via the evanescent waves. The experimentally observed tunneling rate is well described by an analytical expression obtained via a complex variable analysis in the complex wavenumber plane.
0146-9592
4618 - 4621
Fang, Liping
47c506f8-4167-47f4-b129-3b37f3498c90
Danos, Lefteris
48111ee7-001d-4f82-b8c5-249c0fdf2a60
Markvart, Tomas
f21e82ec-4e3b-4485-9f27-ffc0102fdf1c
Chen, Rui
5802dc42-edb1-4fdf-8f2b-f3dc9ce95941
Fang, Liping
47c506f8-4167-47f4-b129-3b37f3498c90
Danos, Lefteris
48111ee7-001d-4f82-b8c5-249c0fdf2a60
Markvart, Tomas
f21e82ec-4e3b-4485-9f27-ffc0102fdf1c
Chen, Rui
5802dc42-edb1-4fdf-8f2b-f3dc9ce95941

Fang, Liping, Danos, Lefteris, Markvart, Tomas and Chen, Rui (2020) Observation of energy transfer at optical frequency to an ultrathin silicon waveguide. Optics Letters, 45 (16), 4618 - 4621. (doi:10.1364/OL.396906).

Record type: Article

Abstract

Energy transfer from a submonolayer of rhodamine 6G molecules to a 130 nm thick crystalline silicon (Si) waveguide is investigated. The dependence of the fluorescence lifetime of rhodamine on its distance to the Si waveguide is characterized and modeled successfully by a classical dipole model. The energy transfer process could be regarded as photon tunneling into the Si waveguide via the evanescent waves. The experimentally observed tunneling rate is well described by an analytical expression obtained via a complex variable analysis in the complex wavenumber plane.

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Accepted/In Press date: 16 July 2020
Published date: 13 August 2020

Identifiers

Local EPrints ID: 445290
URI: http://eprints.soton.ac.uk/id/eprint/445290
ISSN: 0146-9592
PURE UUID: 595e8096-c856-4579-ba9c-6eba74d336bf

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Date deposited: 01 Dec 2020 17:31
Last modified: 26 Nov 2021 06:17

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Contributors

Author: Liping Fang
Author: Lefteris Danos
Author: Tomas Markvart
Author: Rui Chen

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