Spontaneous emission enhancement in metal-dielectric metamaterials

Ivan Iorsh; Alexander Poddubny; Alexey Orlov; Pavel Belov; Yuri S. Kivshar

doi:10.1016/j.physleta.2011.11.001

Spontaneous emission enhancement in metal-dielectric metamaterials

Ivan Iorsh^*, Alexander Poddubny, Alexey Orlov, Pavel Belov, Yuri S. Kivshar

^*Corresponding author for this work

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

104 Citations (Scopus)

Abstract

We study the spontaneous emission of a dipole emitter imbedded into a layered metal-dielectric metamaterial. We demonstrate ultra-high values of the Purcell factor in such structures due to a high density of states with hyperbolic isofrequency surfaces. We reveal that the traditional effective-medium approach greatly underestimates the value of the Purcell factor due to the presence of an effective nonlocality, and we present an analytical model which agrees well with numerical calculations.

Original language	English
Pages (from-to)	185-187
Number of pages	3
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	376
Issue number	3
DOIs	https://doi.org/10.1016/j.physleta.2011.11.001
Publication status	Published - 2 Jan 2012

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10.1016/j.physleta.2011.11.001

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title = "Spontaneous emission enhancement in metal-dielectric metamaterials",

abstract = "We study the spontaneous emission of a dipole emitter imbedded into a layered metal-dielectric metamaterial. We demonstrate ultra-high values of the Purcell factor in such structures due to a high density of states with hyperbolic isofrequency surfaces. We reveal that the traditional effective-medium approach greatly underestimates the value of the Purcell factor due to the presence of an effective nonlocality, and we present an analytical model which agrees well with numerical calculations.",

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AU - Iorsh, Ivan

AU - Poddubny, Alexander

AU - Orlov, Alexey

AU - Belov, Pavel

AU - Kivshar, Yuri S.

PY - 2012/1/2

Y1 - 2012/1/2

N2 - We study the spontaneous emission of a dipole emitter imbedded into a layered metal-dielectric metamaterial. We demonstrate ultra-high values of the Purcell factor in such structures due to a high density of states with hyperbolic isofrequency surfaces. We reveal that the traditional effective-medium approach greatly underestimates the value of the Purcell factor due to the presence of an effective nonlocality, and we present an analytical model which agrees well with numerical calculations.

AB - We study the spontaneous emission of a dipole emitter imbedded into a layered metal-dielectric metamaterial. We demonstrate ultra-high values of the Purcell factor in such structures due to a high density of states with hyperbolic isofrequency surfaces. We reveal that the traditional effective-medium approach greatly underestimates the value of the Purcell factor due to the presence of an effective nonlocality, and we present an analytical model which agrees well with numerical calculations.

KW - Metal-dielectric nanostructures

KW - Purcell factor

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DO - 10.1016/j.physleta.2011.11.001

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JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 3

ER -

Spontaneous emission enhancement in metal-dielectric metamaterials

Abstract

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