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arXiv · 1706.05224

Single-photon interaction between two quantum dots located in different cavities of a weakly coupled double microdisk structure

Simon Seyfferle·Fabian Hargart·Michael Jetter·Evelyn Hu·Peter Michler
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Abstract

We report on the radiative interaction of two single quantum dots (QDs) each in a separate InP/GaInP-based microdisk cavity via resonant whispering gallery modes. The investigations are based on ab initio coupled disk modes. We apply optical spectroscopy involving a $4f$-setup, as well as mode-selective real space imaging and photoluminescence mapping to discern single QDs coupled to a resonant microdisk mode. Excitation of one disk of the double cavity structure and detecting photoluminescene from the other yields proof of single photon emission of a QD excited by incoherent energy transfer from one disk to the other via a mode in the weak coupling regime. Finally, we present evidence of photons emitted by a QD in one disk that are transferred to the other disk by a resonant mode and are subsequently resonantly scattered by another QD.

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Simon Seyfferle, Fabian Hargart, Michael Jetter, Evelyn Hu, Peter Michler. 2017-06-16. Single-photon interaction between two quantum dots located in different cavities of a weakly coupled double microdisk structure. https://doi.org/10.1103/physrevb.97.035302

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