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The recently emerged concept of all-dielectric nanophotonics based on opticalMie resonances in high-index dielectric nanoparticles has proven a promisingpathway to boost light-matter interactions at the nanoscale. In this work, wediscuss the opportunities enabled by the interaction of dielectricnanoresonators with 2D transition metal dichalcogenides (2D TMDCs), leading toweak and strong coupling regimes. We perform a comprehensive analysis of brightexciton photoluminescence (PL) enhancement from various 2D TMDCs, includingWS2, MoS2, WSe2, and MoSe2 via their coupling to Mie resonances of a siliconnanoparticle. For each case, we find the system parameters corresponding tomaximal PL enhancement taking into account excitation rate, Purcell factor, andradiation efficiency. We demonstrate numerically that all-dielectric Sinanoantennas can significantly enhance the PL intensity from 2D TMDC by afactor of hundred through precise optimization of the geometrical and materialparameters. Our results may be useful for high-efficiency 2D TMDC-basedoptoelectronic, nanophotonic, and quantum optical devices.

Enhanced Excitation and Emission from 2D Transition Metal Dichalcogenides with All-Dielectric Nanoantennas