Herpin equivalence in temporal metamaterials-Reference-Cited by-同舟云学术

Herpin equivalence in temporal metamaterials

Published:2022-09-05 Issue:20 Volume:11 Page:4479-4488
ISSN:2192-8614
Container-title:Nanophotonics
language:en
Short-container-title:

Author:

Castaldi Giuseppe¹,Moccia Massimo¹,Engheta Nader²,Galdi Vincenzo¹^ORCID

Affiliation:

1. Department of Engineering, Fields & Waves Lab , University of Sannio , Benevento , I-82100 , Italy

2. Department of Electrical and Systems Engineering , University of Pennsylvania , Philadelphia , PA , 19104 , USA

Abstract

Abstract In analogy with spatial multilayers, we put forward the idea of Herpin equivalence in temporal metamaterials characterized by step-like time variations of the constitutive parameters. We show that, at a given frequency, an arbitrary temporal multistep exhibiting mirror symmetry can be replaced by an equivalent temporal slab with suitable refractive index and travel-time. This enables the synthesis of arbitrary values of the refractive index, in a way that differs fundamentally from the effective-medium approach, and adds new useful analytical machinery to the available toolbox for the study and design of temporal metamaterials, with potentially intriguing applications to anti-reflection coatings and filters.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology

Link

https://www.degruyter.com/document/doi/10.1515/nanoph-2022-0338/pdf

Reference38 articles.

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