Theoretical model for pattern engineering of harmonic generation in all-dielectric nanoantennas
Theoretical model for pattern engineering of harmonic generation in all-dielectric nanoantennas
We develop a novel theoretical model for the study of harmonic generation in cylindrical structures of finite height. Our technique is based on the decomposition of the electromagnetic field over the complete set of modes of the corresponding infinite cylinder. Differently from previous works, in our model no constraints are given neither on the cross section nor on the refractive index of the cylinder. We then apply our approach in the special case of frequency doubling in tall AlGaAs nanodisks, where radiative modes can be neglected. Our results open new perspectives for optimization and engineering of the radiation pattern in harmonic generation processes at the nanoscale.
Guasoni, Massimiliano
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Carletti, Luca
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Neshev, Dragomir
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De Angelis, Costantino
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June 2017
Guasoni, Massimiliano
5aa684b2-643e-4598-93d6-bc633870c99a
Carletti, Luca
8661670a-b894-4809-b6af-8317f0c9dd74
Neshev, Dragomir
486fb39f-4dd3-48d8-9662-50d8147bb9b1
De Angelis, Costantino
8d3311bc-d860-4535-985a-59b52adab3f2
Guasoni, Massimiliano, Carletti, Luca, Neshev, Dragomir and De Angelis, Costantino
(2017)
Theoretical model for pattern engineering of harmonic generation in all-dielectric nanoantennas.
IEEE Journal of Quantum Electronics, 53 (3).
(doi:10.1109/JQE.2017.2697973).
Abstract
We develop a novel theoretical model for the study of harmonic generation in cylindrical structures of finite height. Our technique is based on the decomposition of the electromagnetic field over the complete set of modes of the corresponding infinite cylinder. Differently from previous works, in our model no constraints are given neither on the cross section nor on the refractive index of the cylinder. We then apply our approach in the special case of frequency doubling in tall AlGaAs nanodisks, where radiative modes can be neglected. Our results open new perspectives for optimization and engineering of the radiation pattern in harmonic generation processes at the nanoscale.
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Accepted/In Press date: 18 April 2017
e-pub ahead of print date: 25 April 2017
Published date: June 2017
Identifiers
Local EPrints ID: 426073
URI: http://eprints.soton.ac.uk/id/eprint/426073
ISSN: 0018-9197
PURE UUID: f410c5f9-2e8e-40a1-850c-b644eb4d4c33
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Date deposited: 13 Nov 2018 17:30
Last modified: 15 Mar 2024 22:44
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Contributors
Author:
Massimiliano Guasoni
Author:
Luca Carletti
Author:
Dragomir Neshev
Author:
Costantino De Angelis
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