Determination of the quasi-TE mode (in-plane) graphene linear absorption coefficient via integration with silicon-on-insulator racetrack cavity resonators
Determination of the quasi-TE mode (in-plane) graphene linear absorption coefficient via integration with silicon-on-insulator racetrack cavity resonators
We examine the near-IR light-matter interaction for graphene integrated cavity ring resonators based on silicon-on-insulator (SOI) race-track waveguides. Fitting of the cavity resonances from quasi-TE mode transmission spectra reveal the real part of the effective refractive index for graphene, neff = 2.23 ± 0.02 and linear absorption coefficient, αgTE = 0.11 ± 0.01dBµm-1. The evanescent nature of the guided mode coupling to graphene at resonance depends strongly on the height of the graphene above the cavity, which places limits on the cavity length for optical sensing applications.
18625-18632
Crowe, Iain F.
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Clark, Nicholas
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Hussein, Siham
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Towlson, Brian
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Whittaker, Eric
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Milošević, Milan
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Gardes, Frederic Y.
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Mashanovich, Goran Z.
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Halsall, Matthew P.
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Vijayaraghavan, Aravind
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25 July 2014
Crowe, Iain F.
e48916ae-ac94-46da-a552-6af8c7b75f1b
Clark, Nicholas
57c9dafb-2435-4209-bc18-55eeaa5161ff
Hussein, Siham
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Towlson, Brian
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Whittaker, Eric
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Milošević, Milan
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Gardes, Frederic Y.
7a49fc6d-dade-4099-b016-c60737cb5bb2
Mashanovich, Goran Z.
c806e262-af80-4836-b96f-319425060051
Halsall, Matthew P.
da891598-3a6b-4da7-bb4d-dea2be7abf39
Vijayaraghavan, Aravind
fa7cec52-c14b-450c-8c86-81f229ed6d55
Crowe, Iain F., Clark, Nicholas, Hussein, Siham, Towlson, Brian, Whittaker, Eric, Milošević, Milan, Gardes, Frederic Y., Mashanovich, Goran Z., Halsall, Matthew P. and Vijayaraghavan, Aravind
(2014)
Determination of the quasi-TE mode (in-plane) graphene linear absorption coefficient via integration with silicon-on-insulator racetrack cavity resonators.
Optics Express, 22 (15), .
(doi:10.1364/OE.22.018625).
Abstract
We examine the near-IR light-matter interaction for graphene integrated cavity ring resonators based on silicon-on-insulator (SOI) race-track waveguides. Fitting of the cavity resonances from quasi-TE mode transmission spectra reveal the real part of the effective refractive index for graphene, neff = 2.23 ± 0.02 and linear absorption coefficient, αgTE = 0.11 ± 0.01dBµm-1. The evanescent nature of the guided mode coupling to graphene at resonance depends strongly on the height of the graphene above the cavity, which places limits on the cavity length for optical sensing applications.
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oe-22-15-18625.pdf
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Published date: 25 July 2014
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 367458
URI: http://eprints.soton.ac.uk/id/eprint/367458
ISSN: 1094-4087
PURE UUID: f615c913-089c-4c63-b96e-c2f1d4de5d93
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Date deposited: 01 Aug 2014 17:21
Last modified: 15 Mar 2024 03:40
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Contributors
Author:
Iain F. Crowe
Author:
Nicholas Clark
Author:
Siham Hussein
Author:
Brian Towlson
Author:
Eric Whittaker
Author:
Milan Milošević
Author:
Matthew P. Halsall
Author:
Aravind Vijayaraghavan
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