Výsledky vyhledávání - "Patient, Dean A"

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Manipulating the Quasi-Normal Modes of Radially Symmetric Resonators

Autor: Capers, James R, Patient, Dean A, Horsley, Simon A R

Publikováno v: Optics Express vol. 31 pp. 37142-37153 (2023)

We derive two methods for simultaneously controlling the resonance frequency, linewidth and multipolar nature of the resonances of radially symmetric structures. Firstly, we formulate an eigenvalue problem for a global shift in the permittivity of th

Externí odkaz: http://arxiv.org/abs/2308.06179

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Inverse Design in the Complex Plane: Manipulating Quasi-Normal Modes

Autor: Capers, James R, Patient, Dean A, Horsley, Simon A R

Publikováno v: Phys Rev A 106 053523 (2022)

Utilising the fact that the frequency response of a material can be decomposed into the quasi-normal modes supported by the system, we present two methods to directly manipulate the complex frequencies of quasi-normal modes in the complex plane. We f

Externí odkaz: http://arxiv.org/abs/2206.13863

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Removing grazing incidence reflection with half-bound states and non-Hermitian systems

Autor: Patient, Dean A., Horsley, Simon A. R.

Publikováno v: Proc. SPIE 12130, Metamaterials XIII, 1213003 (24 May 2022)

Grazing incidence waves incident onto a surface will almost always be completely reflected. Here, we focus on removing reflection at grazing incidence, adopting the factorisation method from quantum mechanics and applying it to the Helmholtz equation

Externí odkaz: http://arxiv.org/abs/2206.04398

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Akademický článek

Reflectionless anisotropic multilayers for both polarisations at grazing incidence

Autor: Patient Dean A., Horsley Simon A.R.

Publikováno v: EPJ Applied Metamaterials, Vol 9, p 15 (2022)

We find a method for designing anisotropic multilayer profiles that are reflectionless at grazing incidence, for both electromagnetic polarisations. The Helmholtz equation for grazing incidence propagation through an anisotropic multilayer can be fac

Externí odkaz: https://doaj.org/article/55ec931cf57b4678bf19b7166711fe19