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

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 × 10 6 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.
Authors:
ORCiD logo [1] ; ORCiD logo [1] ;  [1] ;  [2] ; ORCiD logo [1] ;  [3] ;  [3] ;  [2] ;  [2] ;  [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Electrical Engineering and Computer Science
  2. Univ. of Technology Sydney, Ultimo, NSW (Australia). School of Mathematical and Physical Sciences
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Physics
Publication Date:
Grant/Contract Number:
SC0001088; DMR-1231319
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Excitonics (CE)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF); US Army Research Laboratory (USARL); Swiss National Science Foundation (SNSF); Australian Research Council (ARC)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Quantum information; Quantum optics; Single photons and quantum effects; Two-dimensional materials
OSTI Identifier:
1425973

Grosso, Gabriele, Moon, Hyowon, Lienhard, Benjamin, Ali, Sajid, Efetov, Dmitri K., Furchi, Marco M., Jarillo-Herrero, Pablo, Ford, Michael J., Aharonovich, Igor, and Englund, Dirk. Tunable and high-purity room temperature single-photon emission from atomic defects in hexagonal boron nitride. United States: N. p., Web. doi:10.1038/s41467-017-00810-2.
Grosso, Gabriele, Moon, Hyowon, Lienhard, Benjamin, Ali, Sajid, Efetov, Dmitri K., Furchi, Marco M., Jarillo-Herrero, Pablo, Ford, Michael J., Aharonovich, Igor, & Englund, Dirk. Tunable and high-purity room temperature single-photon emission from atomic defects in hexagonal boron nitride. United States. doi:10.1038/s41467-017-00810-2.
Grosso, Gabriele, Moon, Hyowon, Lienhard, Benjamin, Ali, Sajid, Efetov, Dmitri K., Furchi, Marco M., Jarillo-Herrero, Pablo, Ford, Michael J., Aharonovich, Igor, and Englund, Dirk. 2017. "Tunable and high-purity room temperature single-photon emission from atomic defects in hexagonal boron nitride". United States. doi:10.1038/s41467-017-00810-2. https://www.osti.gov/servlets/purl/1425973.
@article{osti_1425973,
title = {Tunable and high-purity room temperature single-photon emission from atomic defects in hexagonal boron nitride},
author = {Grosso, Gabriele and Moon, Hyowon and Lienhard, Benjamin and Ali, Sajid and Efetov, Dmitri K. and Furchi, Marco M. and Jarillo-Herrero, Pablo and Ford, Michael J. and Aharonovich, Igor and Englund, Dirk},
abstractNote = {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.},
doi = {10.1038/s41467-017-00810-2},
journal = {Nature Communications},
number = 1,
volume = 8,
place = {United States},
year = {2017},
month = {9}
}