23 September 2016 Quasinormal mode approach to modelling light-matter interactions in plasmonic-dielectric cavity systems
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Abstract
We describe a powerful quasinormal mode (QNM) approach to characterizing the decay properties of quantum emitters in metal-dielectric resonator systems, including hybrid plasmonic-photonic coupled cavities as well as hyperbolic metamaterial resonators. We quantify both the radiative and non-radiative decay rates in these complex structures using these QNMs and a Green function expansion, which yields an excellent agreement with full-dipole calculations of Maxwell’s equations. Using this analytical QNM theory, we can map the Purcell factor for the system over a wide range of frequencies and dipole positions. We further show that how individual QNMs of these systems contribute to the underlying physics, whether it is strong interference effects between the sub-systems, in the case of a hybrid structure, or it is a physically meaningful explanation of very low beta factor for single photon emission in the case of hyperbolic metamaterials.
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Mohsen Kamandar Dezfouli, Simon Axelrod, Herman M. K. Wang, Amr Helmy, Reuven Gordon, Stephen Hughes, "Quasinormal mode approach to modelling light-matter interactions in plasmonic-dielectric cavity systems", Proc. SPIE 9920, Active Photonic Materials VIII, 99200W (23 September 2016); doi: 10.1117/12.2239001; https://doi.org/10.1117/12.2239001
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