Purcell-Enhanced Single Photon Source Based on a Deterministically Placed WSe2Monolayer Quantum Dot in a Circular Bragg Grating Cavity

Oliver Iff; Quirin Buchinger; Magdalena Moczała-Dusanowska; Martin Kamp; Simon Betzold; Marcelo Davanco; Kartik Srinivasan; Sefaattin Tongay; Carlos Antón-Solanas; Sven Höfling; Christian Schneider

doi:10.1021/acs.nanolett.1c00978

Purcell-Enhanced Single Photon Source Based on a Deterministically Placed WSe₂Monolayer Quantum Dot in a Circular Bragg Grating Cavity

Oliver Iff
, Quirin Buchinger
, Magdalena Moczała-Dusanowska
, Martin Kamp
, Simon Betzold
, Marcelo Davanco
, Kartik Srinivasan
, Sefaattin Tongay
, Carlos Antón-Solanas
, Sven Höfling
, Christian Schneider

Engineering, Ira A. Fulton Schools of (IAFSE)

Research output: Contribution to journal › Article › peer-review

86 Scopus citations

Abstract

We demonstrate a deterministic Purcell-enhanced single photon source realized by integrating an atomically thin WSe2 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 WSe2 emitters located in the center of the Bragg grating cavity. These WSe2 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.

Original language	English (US)
Pages (from-to)	4715-4720
Number of pages	6
Journal	Nano Letters
Volume	21
Issue number	11
DOIs	https://doi.org/10.1021/acs.nanolett.1c00978
State	Published - Jun 9 2021

Keywords

Purcell effect
bullseyes cavities
quantum dots
single photons
two-dimensional materials

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1021/acs.nanolett.1c00978

Cite this

Iff, O., Buchinger, Q., Moczała-Dusanowska, M., Kamp, M., Betzold, S., Davanco, M., Srinivasan, K., Tongay, S., Antón-Solanas, C., Höfling, S., & Schneider, C. (2021). Purcell-Enhanced Single Photon Source Based on a Deterministically Placed WSe₂Monolayer Quantum Dot in a Circular Bragg Grating Cavity. Nano Letters, 21(11), 4715-4720. https://doi.org/10.1021/acs.nanolett.1c00978

Iff, O, Buchinger, Q, Moczała-Dusanowska, M, Kamp, M, Betzold, S, Davanco, M, Srinivasan, K, Tongay, S, Antón-Solanas, C, Höfling, S & Schneider, C 2021, 'Purcell-Enhanced Single Photon Source Based on a Deterministically Placed WSe₂Monolayer Quantum Dot in a Circular Bragg Grating Cavity', Nano Letters, vol. 21, no. 11, pp. 4715-4720. https://doi.org/10.1021/acs.nanolett.1c00978

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abstract = "We demonstrate a deterministic Purcell-enhanced single photon source realized by integrating an atomically thin WSe2 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 WSe2 emitters located in the center of the Bragg grating cavity. These WSe2 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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AB - We demonstrate a deterministic Purcell-enhanced single photon source realized by integrating an atomically thin WSe2 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 WSe2 emitters located in the center of the Bragg grating cavity. These WSe2 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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KW - bullseyes cavities

KW - quantum dots

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KW - two-dimensional materials

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