Spontaneous radiation of a finite-size dipole emitter in hyperbolic media

Alexander N. Poddubny; Pavel A. Belov; Yuri S. Kivshar

doi:https://doi.org/10.1103/PhysRevA.84.023807

Spontaneous radiation of a finite-size dipole emitter in hyperbolic media

Alexander N. Poddubny, Pavel A. Belov, Yuri S. Kivshar

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

Abstract

We study the radiative decay and Purcell effect for a finite-size dipole emitter placed in a homogeneous uniaxial medium. We demonstrate that the radiative rate is strongly enhanced when the signs of the medium longitudinal and transverse dielectric constants are opposite, and that the isofrequency contour corresponds to a hyperbolic medium. We reveal that the Purcell enhancement factor remains finite even in the absence of losses and that it depends on the emitter size.

Original language	English
Article number	023807
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	84
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.84.023807
State	Published - 8 Aug 2011
Externally published	Yes

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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https://doi.org/10.1103/PhysRevA.84.023807

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abstract = "We study the radiative decay and Purcell effect for a finite-size dipole emitter placed in a homogeneous uniaxial medium. We demonstrate that the radiative rate is strongly enhanced when the signs of the medium longitudinal and transverse dielectric constants are opposite, and that the isofrequency contour corresponds to a hyperbolic medium. We reveal that the Purcell enhancement factor remains finite even in the absence of losses and that it depends on the emitter size.",

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AB - We study the radiative decay and Purcell effect for a finite-size dipole emitter placed in a homogeneous uniaxial medium. We demonstrate that the radiative rate is strongly enhanced when the signs of the medium longitudinal and transverse dielectric constants are opposite, and that the isofrequency contour corresponds to a hyperbolic medium. We reveal that the Purcell enhancement factor remains finite even in the absence of losses and that it depends on the emitter size.

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VL - 84

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

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Spontaneous radiation of a finite-size dipole emitter in hyperbolic media

Abstract

All Science Journal Classification (ASJC) codes

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