Local-field corrections to the decay rate of excited molecules in absorbing cavities: The Onsager model

Tomaš, M. S.

doi:10.1103/physreva.63.053811

Cited by 44 publications

(17 citation statements)

References 44 publications

(43 reference statements)

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“…The scattering Green function for a spherical two layered system with final and source point in the outer layer can be found in Refs. 24,25 The boundary conditions entering the reflection coefficients read as z = kR C and z s = k s R C with the cavity radius R C and the absolute value of the wave vector inside and outside of the sphere k s and k, respectively. Considering a single scattering event starting outside the cavity towards its centre and back scattering, these processes can be described with the Born series expansion.…”

Section: Clausius-mossotti Relation and Virtual Cavity Modelmentioning

confidence: 99%

Effective Polarizability Models

et al. 2017

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Theories for the effective polarisability of a small particle in a medium are presented using different levels of approximation: we consider the virtual cavity, real cavity and the hard-sphere models as well as a continuous interpolation of the latter two. We present the respective hard-sphere and cavity radii as obtained from density-functional simulations as well as the resulting effective polarisabilities at discrete Matsubara frequencies. This enables us to account for macroscopic media in van der Waals interactions between molecules in water and their Casimir-Polder interaction with an interface.

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Section: Clausius-mossotti Relation and Virtual Cavity Modelmentioning

confidence: 99%

Effective Polarizability Models

et al. 2017

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“…[12] and later proved in Ref. [19] for an arbitrary geometry of the material body surrounding the guest atom that the Green tensor can be decomposed as…”

Section: Basic Formulasmentioning

confidence: 99%

“…In macroscopic approaches to the problem, local-field effects have been taken into account by regarding the guest atom as being enclosed in a sufficiently small virtual [1,9] or real (spherical) cavity [2,[10][11][12][13][14]. In the virtual-cavity model the cavity is regarded as being part of the host medium.…”

Section: Introductionmentioning

confidence: 99%

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Local-field correction in the strong-coupling regime

2011

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The influence of the local-field correction on the strong atom-field coupling regime are investigated using the real-cavity model. The atom is positioned at the center of a multilayer sphere. Three types of mirrors are considered: perfectly reflecting, Lorentz band gap, and Bragg-distributed ones, with special emphasis on experimental practicability. In particular, the influence of the local field on the spectral resonance lines, the Rabi oscillation frequency and decay rate, and the condition indicating the occurrence of the strong-coupling regime are studied in detail. It is shown that the local-field correction gives rise to a structureless plateau in the density of states of the electromagnetic field. The level of the plateau rises with increasing material density and/or absorption, which may eventually destroy the strong-coupling regime. The effect of the local field is especially pronounced at high-material densities due to direct energy transfer from the guest atom to the medium. At lower material density and/or absorption, variation of the material density does not seem to affect much the strong-coupling regime, except for a small shift in the resonance frequency.

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“…In Ref. [22], Tomaš showed that the LF could be described by a combination of both the volume averaged homogeneous contribution (using the homogeneous GF for gold) G h loc (r d , r d ; ω) (r d is the position of an electric dipole at the center of the RC) and the scattering contribution, G sc loc (r d , r d ; ω), due to the inhomogeneity of the lossy structure; so the LF GF is given by [22] r d ; ω) and G sc (r d , r d ; ω) is the scattered GF without the RC. Using a Born-expansion method, Dung et al, [9] showed direct agreement with the Tomaš LF formula.…”

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confidence: 99%

Quasi-normal mode approach to the local-field problem in quantum optics

Young

Hughes

2015

Optica

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The local-field (LF) problem of a finite-size dipole emit- ter radiating inside a lossy inhomogeneous structure is a long-standing and challenging quantum optical problem, and it now is becoming more important due to rapid advances in solid-state fabrication technologies. Here we introduce a simple and accurate quasi-normal mode (QNM) technique to solve this problem analyti- cally by separating the scattering problem into contribu- tions from the QNM and an image dipole. Using a real- cavity model to describe an artificial atom inside a lossy and dispersive gold nanorod, we show when the contri- bution of the QNM to LFs will dominate over the homo- geneous contribution. We also show how to accurately describe surface scattering for real cavities that are close to the metal interface and explore regimes when the surface scattering dominates. Our results offer an intui- tive picture of the underlying physics for the LF problem and facilitate the understanding of novel photon sources within lossy structures

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Local-field corrections to the decay rate of excited molecules in absorbing cavities: The Onsager model

Cited by 44 publications

References 44 publications

Effective Polarizability Models

Effective Polarizability Models

Local-field correction in the strong-coupling regime

Quasi-normal mode approach to the local-field problem in quantum optics

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