Spontaneous Emission in Nonlocal Metamaterials with Spatial Dispersion

Brian Wells*, Pavel Ginzburg, Viktor A. Podolskiy, Anatoly V. Zayats

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Scopus citations

Abstract

Recent successes in fabrication, characterization, numerical computations, and theory have brought to life a new class of composite materials with engineered optical properties, metamaterials. Uniaxial anisotropic artificially created structures based on plasmonic nanowire arrays have emerged as a versatile platform for negative refraction, subwavelength optics, biosensing, acoustic sensing, and nonlinearity engineering. It has been demonstrated, both experimentally and theoretically, that the optical response of plasmonic nanowire arrays is strongly affected by nonlocal electromagnetism, a phenomenon where permittivity of metamaterial strongly depends not only on the frequency, but also on wavevector of the plane wave interacting with this structure. Nonlocal dielectric response leads to excitation of additional electromagnetic wave that does not exist in conventional, local, metamaterials. The dispersion of this wave can be engineered by adjusting composition and geometry of metamaterial. In this chapter we present comprehensive review of nonlocal electromagnetic properties in plasmonic nanowire metamaterials. We begin by introducing the material platform, explain the theoretical approach for nonlocal homogenization, and finally discuss the implication of material nonlocality for emission of light in nonlocal environment.

Original languageEnglish
Title of host publicationSpringer Series in Solid-State Sciences
PublisherSpringer Science and Business Media Deutschland GmbH
Pages237-277
Number of pages41
DOIs
StatePublished - 2017

Publication series

NameSpringer Series in Solid-State Sciences
Volume185
ISSN (Print)0171-1873
ISSN (Electronic)2197-4179

Funding

FundersFunder number
ESPRC
Army Research OfficeW911NF-12-1-0533
Army Research Office
Royal Society
European Research Council321268
European Research Council
Wolfson Foundation
German-Israeli Foundation for Scientific Research and Development2399
German-Israeli Foundation for Scientific Research and Development
Tel Aviv University

    Keywords

    • Metamaterials
    • Plasmonics
    • Purcell effect
    • Quantum optics
    • Spatial dispersion

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