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Cavity enhanced third harmonic generation in graphene

Cavity enhanced third harmonic generation in graphene
Cavity enhanced third harmonic generation in graphene
Graphene displays a surprisingly large third order nonlinearity. Here, we report that conversion efficiencies approaching 10–4 are possible for third harmonic generation (THG). Moreover, the atomically thin nature of graphene allows for simple integration in cavity designs to increase this even further. We demonstrate a 117-fold enhancement, of resonant vs non-resonant wavelengths in the THG from graphene due to the integration of a graphene layer with a resonant cavity. This large enhancement occurs as the cavity is resonant for both the fundamental field and the third harmonic. We model this effect using the finite difference time domain approach. By comparing our model with experiment, we are able to deduce the value of a bulk third order susceptibility of graphene of |χ(3)| = 4×10−17 (m/V)2 .
&more...
0003-6951
Beckerleg, Chris
1dfb65c8-f95c-44c7-8814-4bfb2957ddc9
Constant, Thomas J
629eb6b0-91fb-40f4-8b6e-d0f649df24bd
Zeimpekis, Ioannis
a2c354ec-3891-497c-adac-89b3a5d96af0
Hornett, Samuel M
0fc76e6d-9e13-4b3f-9a0a-50b7771412f7
Craig, Christopher
2328b42b-552e-4a82-941d-45449e952f10
Hewak, Daniel
87c80070-c101-4f7a-914f-4cc3131e3db0
Hendry, Euan
15b0b014-414d-41bb-ad85-1e1808525d94
Beckerleg, Chris
1dfb65c8-f95c-44c7-8814-4bfb2957ddc9
Constant, Thomas J
629eb6b0-91fb-40f4-8b6e-d0f649df24bd
Zeimpekis, Ioannis
a2c354ec-3891-497c-adac-89b3a5d96af0
Hornett, Samuel M
0fc76e6d-9e13-4b3f-9a0a-50b7771412f7
Craig, Christopher
2328b42b-552e-4a82-941d-45449e952f10
Hewak, Daniel
87c80070-c101-4f7a-914f-4cc3131e3db0
Hendry, Euan
15b0b014-414d-41bb-ad85-1e1808525d94

Beckerleg, Chris, Constant, Thomas J, Zeimpekis, Ioannis, Hornett, Samuel M, Craig, Christopher, Hewak, Daniel and Hendry, Euan (2018) Cavity enhanced third harmonic generation in graphene. Applied Physics Letters, 112 (1). (doi:10.1063/1.4999054).

Record type: Article

Abstract

Graphene displays a surprisingly large third order nonlinearity. Here, we report that conversion efficiencies approaching 10–4 are possible for third harmonic generation (THG). Moreover, the atomically thin nature of graphene allows for simple integration in cavity designs to increase this even further. We demonstrate a 117-fold enhancement, of resonant vs non-resonant wavelengths in the THG from graphene due to the integration of a graphene layer with a resonant cavity. This large enhancement occurs as the cavity is resonant for both the fundamental field and the third harmonic. We model this effect using the finite difference time domain approach. By comparing our model with experiment, we are able to deduce the value of a bulk third order susceptibility of graphene of |χ(3)| = 4×10−17 (m/V)2 .
&more...

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Accepted/In Press date: 17 December 2017
e-pub ahead of print date: 4 January 2018
Published date: January 2018

Identifiers

Local EPrints ID: 416881
URI: https://eprints.soton.ac.uk/id/eprint/416881
ISSN: 0003-6951
PURE UUID: 0e6e3c24-c9d4-4602-807e-6c39ab12d5b4
ORCID for Daniel Hewak: ORCID iD orcid.org/0000-0002-2093-5773

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Date deposited: 12 Jan 2018 17:30
Last modified: 30 Mar 2018 16:30

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Contributors

Author: Chris Beckerleg
Author: Thomas J Constant
Author: Ioannis Zeimpekis
Author: Samuel M Hornett
Author: Christopher Craig
Author: Daniel Hewak ORCID iD
Author: Euan Hendry

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