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Proceedings Paper

Nonlinear plasmonic resonances in graphene nanostructures
Author(s): Jian Wei You; Martin Weismann; Nicolae C. Panoiu
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Paper Abstract

Peculiar physical properties of graphene offer remarkable potential for advanced photonics, particularly in the area of nonlinear optics at deep-subwavelength scale. In this article, we use a theoretical and computational analysis to demonstrate an efficient mechanism for enhancing the third-harmonic generation in graphene diffraction gratings. By taking advantage of the relation between the resonance wavelength of localized surface-plasmon polaritons of graphene ribbons and disks their specific geometry, we can engineer the spectral response of graphene gratings so as strong plasmonic resonances exist at both the fundamental frequency and third-harmonic (TH). As a result of this dual resonance mechanism for optical near-field enhancement, the intensity of the TH can be increased greatly.

Paper Details

Date Published: 16 September 2016
PDF: 7 pages
Proc. SPIE 9920, Active Photonic Materials VIII, 99200P (16 September 2016); doi: 10.1117/12.2237944
Show Author Affiliations
Jian Wei You, Univ. College London (United Kingdom)
Martin Weismann, Univ. College London (United Kingdom)
Nicolae C. Panoiu, Univ. College London (United Kingdom)

Published in SPIE Proceedings Vol. 9920:
Active Photonic Materials VIII
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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