Abstract
In the last few years, a great interest has attracted structures called plasmonic nanopatch antennas (PNA). As a rule, the nanopatch antenna consists of a metallic nanoparticle located above the metal surface and separated from it by a layer of dielectric. In PNA, significant amplification of local electromagnetic fields is possible, which allows reaching high densities of the local electronic states of the emitter placed inside the PNA. In such structures it is possible to achieve the Purcell factor of the order of 103, which gives an advantage to PNA in comparison with dielectric one, where the Purcell factor is several units. High Purcell factor allows to create sources of single photons with a frequency of up to 100 GHz. In this paper, calculations of plasmon resonance dependences on various structure parameters on the example of PNA with a triangular silver nanoprism are carried out.
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