Purcell effect in triangular plasmonic nanopatch antennas with three-layer colloidal quantum dots |
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| Authors: | S P Eliseev N S Kurochkin S S Vergeles V V Sychev D A Chubich P Argyrakis D A Kolymagin A G Vitukhnovskii |
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| Institution: | 1.Moscow Institute of Physics and Technology (State University),Dolgoprudnyi,Moscow region,Russia;2.Lebedev Physical Institute,Russian Academy of Sciences,Moscow,Russia;3.Landau Institute for Theoretical Physics,Russian Academy of Sciences, Chernogolovka,Moscow region,Russia;4.Aristotle University of Thessaloniki,Thessaloniki,Greece;5.National Research Nuclear University MEPhI (Moscow Engineering Physics Institute),Moscow,Russia |
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| Abstract: | A model describing a plasmonic nanopatch antenna based on triangular silver nanoprisms and multilayer cadmium chalcogenide quantum dots is introduced. Electromagnetic-field distributions in nanopatch antennas with different orientations of the quantum-dot dipoles are calculated for the first time with the finite element method for numerical electrodynamics simulations. The energy flux through the surface of an emitting quantum dot is calculated for the configurations with the dot in free space, on an aluminum substrate, and in a nanopatch antenna. It is shown that the radiative part of the Purcell factor is as large as 1.7 × 102 The calculated photoluminescence lifetimes of a CdSe/CdS/ZnS colloidal quantum dot in a nanopatch antenna based on a silver nanoprism agree well with the experimental results. |
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