4 years ago

Silicon Particle as a Nanocavity for Stable Emission of Quantum Dots

Silicon Particle as a Nanocavity for Stable Emission of Quantum Dots
Xianguang Yang, Baojun Li, Yuchao Li
Owing to the optically induced electric and magnetic dipolar resonances correlated with the high refractive index dielectrics, the silicon particle has been explored as a low-loss nanocavity that is a promising candidate to enhance photon–exciton interactions at the nanometer scale. Here we reported that the visible photoluminescence from quantum dots coupled to the localized magnetic dipolar resonances of the silicon particle nanocavity. The efficient coupling was achieved via resonance energy transfer between the exciton and the magnetic dipole, resulting in the nanoscale confinement of stable emission from quantum dots. This hybrid all-dielectric system would achieve the long-term goal of light confinement beyond diffraction without metals and provide low-loss applications in dielectric nanophotonics.

Publisher URL: http://dx.doi.org/10.1021/acsphotonics.7b00741

DOI: 10.1021/acsphotonics.7b00741

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