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arXiv · 2102.02827

Purcell-enhanced single photon source based on a deterministically placed WSe$_{2}$ monolayer quantum dot in a circular Bragg grating cavity

O. Iff·Q. Buchinger·M. Moczała-Dusanowska·M. Kamp·S. Betzold·S. Tongay·C. Antón-Solanas·S. Höfling·C. Schneider
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Abstract

We demonstrate a deterministic Purcell-enhanced single-photon source realized by integrating an atomically thin WSe$_{2}$ layer with a circular Bragg grating cavity. The cavity significantly enhances the photoluminescence from the atomically thin layer, and supports single-photon generation with $g^{(2)}(0)<0.25$. We observe a consistent increase of the spontaneous emission rate for WSe$_{2}$ emitters located in the center of the Bragg grating cavity. These WSe$_{2}$ emitters are self-aligned and deterministically coupled to such a broadband cavity, configuring a new generation of deterministic single-photon sources, characterized by their simple and low-cost production and intrinsic scalability.

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BibTeXRIS

O. Iff, Q. Buchinger, M. Moczała-Dusanowska, M. Kamp, S. Betzold, S. Tongay, C. Antón-Solanas, S. Höfling, C. Schneider. 2021-02-04. Purcell-enhanced single photon source based on a deterministically placed WSe$_{2}$ monolayer quantum dot in a circular Bragg grating cavity. https://doi.org/10.1021/acs.nanolett.1c00978

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