Resonant-state expansion for open optical systems: Generalization to magnetic, chiral, and bi-anisotropic materials

Muljarov, Egor ORCID: https://orcid.org/0000-0002-2878-4148 and Weiss, T. 2018. Resonant-state expansion for open optical systems: Generalization to magnetic, chiral, and bi-anisotropic materials. Optics Letters 43 (9) , pp. 1978-1981. 10.1364/OL.43.001978

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Abstract

The resonant-state expansion, a recently developed powerful method in electrodynamics, is generalized here for open optical systems containing magnetic, chiral, or bi-anisotropic materials. It is shown that the key matrix eigenvalue equation of the method remains the same, but the matrix elements of the perturbation now contain variations of the permittivity, permeability, and bi-anisotropy tensors. A general normalization of resonant states in terms of the electric and magnetic fields is presented.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	Optical Society of America
ISSN:	0146-9592
Date of First Compliant Deposit:	5 March 2018
Date of Acceptance:	27 February 2018
Last Modified:	02 May 2023 14:42
URI:	https://orca.cardiff.ac.uk/id/eprint/109690

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