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Analytical model for active metamaterials with quantum ingredients

Analytical model for active metamaterials with quantum ingredients
Analytical model for active metamaterials with quantum ingredients
We present an analytical model for describing complex dynamics of a hybrid system consisting of resonantly coupled classical resonator and quantum structures. Classical resonators in our model correspond to plasmonic metamaterials of various geometries, as well as other types of nano- and microstructure, the optical responses of which can be described classically. Quantum resonators are represented by atoms or molecules, or their aggregates (for example, quantum dots, carbon nanotubes, dye molecules, polymer or bio-molecules etc), which can be accurately modelled only with the use of the quantum mechanical approach. Our model is based on the set of equations that combines well established density matrix formalism appropriate for quantum systems, coupled with harmonic-oscillator equations ideal for modelling sub-wavelength plasmonic and optical resonators. As a particular example of application of our model, we show that the saturation nonlinearity of carbon nanotubes increases multifold in the resonantly enhanced near field of a metamaterial. In the framework of our model, we discuss the effect of inhomogeneity of the carbon-nanotube layer (bandgap value distribution) on the nonlinearity enhancement.
optical metamaterials, quantum dynamics, nonlinear optics, cnt, homogenization
2040-8986
114005-[8pp]
Chipouline, A.
8d0f4328-4131-4fb2-b737-f6fbfdcd951e
Sugavanam, S.
23718095-8770-4c51-b7de-ac8ce97f46b0
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Nikolaenko, A.E.
62341850-7828-48f6-8d5a-3778f44d170c
Chipouline, A.
8d0f4328-4131-4fb2-b737-f6fbfdcd951e
Sugavanam, S.
23718095-8770-4c51-b7de-ac8ce97f46b0
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Nikolaenko, A.E.
62341850-7828-48f6-8d5a-3778f44d170c

Chipouline, A., Sugavanam, S., Fedotov, V.A. and Nikolaenko, A.E. (2012) Analytical model for active metamaterials with quantum ingredients. Journal of Optics, 14 (11), 114005-[8pp]. (doi:10.1088/2040-8978/14/11/114005).

Record type: Article

Abstract

We present an analytical model for describing complex dynamics of a hybrid system consisting of resonantly coupled classical resonator and quantum structures. Classical resonators in our model correspond to plasmonic metamaterials of various geometries, as well as other types of nano- and microstructure, the optical responses of which can be described classically. Quantum resonators are represented by atoms or molecules, or their aggregates (for example, quantum dots, carbon nanotubes, dye molecules, polymer or bio-molecules etc), which can be accurately modelled only with the use of the quantum mechanical approach. Our model is based on the set of equations that combines well established density matrix formalism appropriate for quantum systems, coupled with harmonic-oscillator equations ideal for modelling sub-wavelength plasmonic and optical resonators. As a particular example of application of our model, we show that the saturation nonlinearity of carbon nanotubes increases multifold in the resonantly enhanced near field of a metamaterial. In the framework of our model, we discuss the effect of inhomogeneity of the carbon-nanotube layer (bandgap value distribution) on the nonlinearity enhancement.

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Published date: 26 September 2012
Keywords: optical metamaterials, quantum dynamics, nonlinear optics, cnt, homogenization
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 346696
URI: https://eprints.soton.ac.uk/id/eprint/346696
ISSN: 2040-8986
PURE UUID: 234e9bbc-d834-46f2-be3b-dd019cd1e854

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Date deposited: 07 Jan 2013 14:58
Last modified: 14 Aug 2019 18:48

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Contributors

Author: A. Chipouline
Author: S. Sugavanam
Author: V.A. Fedotov
Author: A.E. Nikolaenko

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