Emission quenching is analysed at nanometer distances from the surface of an absorbing nanoparticle. It is demonstrated that emission quenching at small distances to the surface is much weaker for magnetic-dipole (MD) than for electric-dipole (ED) transitions. This difference is explained by the fact that the electric field induced by a magnetic dipole has a weaker distance dependence than the electric field of an electric dipole. It is also demonstrated that in the extreme near-field regime the non-locality of the optical response of the metal results in additional emission quenching for both ED and MD transitions.
Dmitry N. Chigrin, Deepu Kumar, and Gero von Plessen, "Emission quenching of magnetic dipole transitions near an absorbing nanoparticle
(Conference Presentation)," Proc. SPIE 9920, Active Photonic Materials VIII, 99201W (Presented at SPIE Nanoscience + Engineering: September 01, 2016; Published: 9 November 2016); https://doi.org/10.1117/12.2238152.5159519624001.
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