Spontaneous emission in non-local materials

Pavel Ginzburg; Diane J. Roth; Mazhar E. Nasir; Paulina Segovia; Alexey V. Krasavin; James Levitt; Liisa M. Hirvonen; Brian Wells; Klaus Suhling; David Richards; Viktor A. Podolskiy; Anatoly V. Zayats

doi:10.1038/lsa.2016.273

Spontaneous emission in non-local materials

Pavel Ginzburg^*, Diane J. Roth, Mazhar E. Nasir, Paulina Segovia, Alexey V. Krasavin, James Levitt, Liisa M. Hirvonen, Brian Wells, Klaus Suhling, David Richards, Viktor A. Podolskiy, Anatoly V. Zayats

^*Corresponding author for this work

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

85 Scopus citations

Abstract

Light-matter interactions can be strongly modified by the surrounding environment. Here, we report on the first experimental observation of molecular spontaneous emission inside a highly non-local metamaterial based on a plasmonic nanorod assembly. We show that the emission process is dominated not only by the topology of its local effective medium dispersion, but also by the non-local response of the composite, so that metamaterials with different geometric parameters but the same local effective medium properties exhibit different Purcell factors. A record-high enhancement of a decay rate is observed, in agreement with the developed quantitative description of the Purcell effect in a non-local medium. An engineered material non-locality introduces an additional degree of freedom into quantum electrodynamics, enabling new applications in quantum information processing, photochemistry, imaging and sensing with macroscopic composites.

Original language	English
Article number	e16273
Journal	Light: Science and Applications
Volume	6
Issue number	6
DOIs	https://doi.org/10.1038/lsa.2016.273
State	Published - 2 Jun 2017

Funding

Funders	Funder number
European Commission	321268
Engineering and Physical Sciences Research Council	EP/G029806/1, EP/M013812/1

Keywords

Composite electromagnetic materials
Non-local optical properties
Plasmonic metamaterials
Quantum electrodynamics
Spontaneous emission

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10.1038/lsa.2016.273

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title = "Spontaneous emission in non-local materials",

abstract = "Light-matter interactions can be strongly modified by the surrounding environment. Here, we report on the first experimental observation of molecular spontaneous emission inside a highly non-local metamaterial based on a plasmonic nanorod assembly. We show that the emission process is dominated not only by the topology of its local effective medium dispersion, but also by the non-local response of the composite, so that metamaterials with different geometric parameters but the same local effective medium properties exhibit different Purcell factors. A record-high enhancement of a decay rate is observed, in agreement with the developed quantitative description of the Purcell effect in a non-local medium. An engineered material non-locality introduces an additional degree of freedom into quantum electrodynamics, enabling new applications in quantum information processing, photochemistry, imaging and sensing with macroscopic composites.",

keywords = "Composite electromagnetic materials, Non-local optical properties, Plasmonic metamaterials, Quantum electrodynamics, Spontaneous emission",

author = "Pavel Ginzburg and Roth, {Diane J.} and Nasir, {Mazhar E.} and Paulina Segovia and Krasavin, {Alexey V.} and James Levitt and Hirvonen, {Liisa M.} and Brian Wells and Klaus Suhling and David Richards and Podolskiy, {Viktor A.} and Zayats, {Anatoly V.}",

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doi = "10.1038/lsa.2016.273",

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AU - Roth, Diane J.

AU - Nasir, Mazhar E.

AU - Segovia, Paulina

AU - Krasavin, Alexey V.

AU - Levitt, James

AU - Hirvonen, Liisa M.

AU - Wells, Brian

AU - Suhling, Klaus

AU - Richards, David

AU - Podolskiy, Viktor A.

AU - Zayats, Anatoly V.

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Y1 - 2017/6/2

N2 - Light-matter interactions can be strongly modified by the surrounding environment. Here, we report on the first experimental observation of molecular spontaneous emission inside a highly non-local metamaterial based on a plasmonic nanorod assembly. We show that the emission process is dominated not only by the topology of its local effective medium dispersion, but also by the non-local response of the composite, so that metamaterials with different geometric parameters but the same local effective medium properties exhibit different Purcell factors. A record-high enhancement of a decay rate is observed, in agreement with the developed quantitative description of the Purcell effect in a non-local medium. An engineered material non-locality introduces an additional degree of freedom into quantum electrodynamics, enabling new applications in quantum information processing, photochemistry, imaging and sensing with macroscopic composites.

AB - Light-matter interactions can be strongly modified by the surrounding environment. Here, we report on the first experimental observation of molecular spontaneous emission inside a highly non-local metamaterial based on a plasmonic nanorod assembly. We show that the emission process is dominated not only by the topology of its local effective medium dispersion, but also by the non-local response of the composite, so that metamaterials with different geometric parameters but the same local effective medium properties exhibit different Purcell factors. A record-high enhancement of a decay rate is observed, in agreement with the developed quantitative description of the Purcell effect in a non-local medium. An engineered material non-locality introduces an additional degree of freedom into quantum electrodynamics, enabling new applications in quantum information processing, photochemistry, imaging and sensing with macroscopic composites.

KW - Composite electromagnetic materials

KW - Non-local optical properties

KW - Plasmonic metamaterials

KW - Quantum electrodynamics

KW - Spontaneous emission

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Spontaneous emission in non-local materials

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