Jens-Christian Drawer
;
Victor Nikolaevich Mitryakhin
;
Hangyong Shan
;
Sven Stephan
;
Moritz Gittinger
;
Lukas Lackner
;
Bo Han
;
Gilbert Leibeling
;
Falk Eilenberger
;
Rounak Banerjee
;
Sefaattin Tongay
;
Kenji Watanabe
(National Institute for Materials Science
)
;
Takashi Taniguchi
(National Institute for Materials Science)
;
Christoph Lienau
;
Martin Silies
;
Carlos Anton-Solanas
;
Martin Esmann
;
Christian Schneider
Collection
Citation
Description:
(abstract)Solid-state single photon sources are central building blocks in quantum communication networks and on-chip quantum information processing. Atomically thin crystals and layered van-der-Waals materials emerged as possible candidates to emit non-classical states of light. However, the performance of monolayer-based single photon sources has so far been lacking behind state-of-the-art devices based on volume crystals. Here, we implement a single photon source based on an atomically thin sheet of WSe2 coupled to a spectrall tunable optical cavity. We harness the vibrational stability of our open cavity single photon source, which allows us to operate it in a liquid helium-free cryostat without further need for stabilization routines. Its performance is characterized by a high single photon purity with a g(2)(0) value as low as 4.7 ± 0.7 % and a record-high, directly measured first lens brightness of linearly polarized photons as large as 65 ± 4 % as a decisive step towards real-world quantum applications. Interestingly, the high performance of our devices allows us to observe genuine quantum interference phenomena in a Hong-Ou-Mandel experiment. Our results thus demonstrate that open cavities and two-dimensional materials constitute an excellent platform for ultra-bright quantum light sources: the unique properties of such two-dimensional materials and the versatility of open cavities open an inspiring avenue for novel quantum optoelectronic devices.
Rights:
Keyword: Single-photon sources, atomically thin crystals, quantum information
Date published: 2023-09-27
Publisher: American Chemical Society (ACS)
Journal:
- Nano Letters (ISSN: 15306984) vol. 23 issue. 18 p. 8683-8689
Funding:
- Volkswagen Foundation SMART
- Comunidad de Madrid 2020T1/IND19785
- Fundaci??n Ram??n Areces ULTRA-BRIGHT
- Ministerio de Ciencia e Innovaci??n PID2020-113445GB-I00
- Deutsche Forschungsgemeinschaft INST 184/220-1 FUGG
- Deutsche Forschungsgemeinschaft SCHN1376 11.1
- Deutsche Forschungsgemeinschaft SCHN1376 14.1
- U.S. Department of Energy DOE-SC0020653
- European Commission 101017733
- European Commission 679288
- National Science Foundation DMR 2111812
- National Science Foundation DMR 2206987
- National Science Foundation ECCS 2052527
- National Science Foundation ECCS 2111812
- National Science Foundation GOALI 2129412
- Carl von Ossietzky Universit??t Oldenburg
- Bundesministerium f??r Bildung und Forschung
- Nieders??chsisches Ministerium f??r Wissenschaft und Kultur DyNano
Manuscript type: Publisher's version (Version of record)
MDR DOI:
First published URL: https://doi.org/10.1021/acs.nanolett.3c02584
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Other identifier(s):
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Updated at: 2025-02-26 12:30:53 +0900
Published on MDR: 2025-02-26 12:30:53 +0900
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