Tunable and high-purity room temperature single-photon emission from atomic defects in hexagonal boron nitride

Grosso, Gabriele; Moon, Hyowon; Lienhard, Benjamin; Ali, Sajid; Efetov, Dmitri K.; Furchi, Marco M.; Jarillo-Herrero, Pablo; Ford, Michael J.; Aharonovich, Igor; Englund, Dirk

doi:10.1038/s41467-017-00810-2

Title: Tunable and high-purity room temperature single-photon emission from atomic defects in hexagonal boron nitride

Journal Article · Tue Sep 26 00:00:00 EDT 2017 · Nature Communications

DOI:https://doi.org/10.1038/s41467-017-00810-2· OSTI ID:1425973

^[1];

^[1]; Lienhard, Benjamin ^[1]; Ali, Sajid ^[2];

^[1]; Furchi, Marco M. ^[3]; Jarillo-Herrero, Pablo ^[3]; Ford, Michael J. ^[2]; Aharonovich, Igor ^[2]; Englund, Dirk ^[1]

Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Electrical Engineering and Computer Science
Univ. of Technology Sydney, Ultimo, NSW (Australia). School of Mathematical and Physical Sciences
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Physics

Two-dimensional van der Waals materials have emerged as promising platforms for solid-state quantum information processing devices with unusual potential for heterogeneous assembly. Recently, bright and photostable single photon emitters were reported from atomic defects in layered hexagonal boron nitride (hBN), but controlling inhomogeneous spectral distribution and reducing multi-photon emission presented open challenges. Here, we demonstrate that strain control allows spectral tunability of hBN single photon emitters over 6 meV, and material processing sharply improves the single photon purity. We observe high single photon count rates exceeding 7 × 10⁶ counts per second at saturation, after correcting for uncorrelated photon background. Furthermore, these emitters are stable to material transfer to other substrates. High-purity and photostable single photon emission at room temperature, together with spectral tunability and transferability, opens the door to scalable integration of high-quality quantum emitters in photonic quantum technologies.

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Research Organization:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Excitonics (CE)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); US Army Research Laboratory (USARL); Swiss National Science Foundation (SNSF); Australian Research Council (ARC)

Grant/Contract Number:: SC0001088; DMR-1231319

OSTI ID:: 1425973

Journal Information:: Nature Communications, Vol. 8, Issue 1; ISSN 2041-1723

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 312 works

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Single photons and quantum effects
Two-dimensional materials

Title: Tunable and high-purity room temperature single-photon emission from atomic defects in hexagonal boron nitride

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