Quantized fluctuational electrodynamics for three-dimensional plasmonic structures

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  • Danmarks Tekniske Universitet


We recently introduced a quantized fluctuational electrodynamics (QFED) formalism that provides a physically insightful definition of an effective position-dependent photon-number operator and the associated ladder operators. However, this far the formalism has been applicable only for the normal incidence of the electromagnetic field in planar structures. In this work, we overcome the main limitation of the one-dimensional QFED formalism by extending the model to three dimensions, allowing us to use the QFED method to study, e.g., plasmonic structures. To demonstrate the benefits of the developed formalism, we apply it to study the local steady-state photon numbers and field temperatures in a light-emitting near-surface InGaN quantum-well structure with a metallic coating supporting surface plasmons.


Original languageEnglish
Article number013848
Pages (from-to)1-14
JournalPhysical Review A
Issue number1
Publication statusPublished - 30 Jan 2017
MoE publication typeA1 Journal article-refereed

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