Tunable and high-purity room temperature single-photon emission from atomic defects in hexagonal boron nitride
Year: 2017
Type: article
Abstract: 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.
Source: Nature Communications
Authors: Gabriele Grosso, Hyowon Moon, Benjamin Lienhard, Sajid Ali, Dmitri K. Efetov, Marco M. Furchi, Pablo Jarillo-Herrero, Michael J. Ford, Igor Aharonovich, Dirk Englund
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $6,990
Funders: National Science Foundation, U.S. Department of Energy, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Austrian Science Fund, Samsung, Office of Science, Australian Research Council, Division of Materials Research, Division of Emerging Frontiers in Research and Innovation, Basic Energy Sciences, Army Research Laboratory
Awards: G1163397706, G1234695815, G1639952346, EFRI 2-DARE: Excitonics and Polaritonics using 2D materials (ExPo2D), Graphene-based photonics, Center for Integrated Quantum Materials, TAS::89 0227::TAS RECOVERY; RECOVERY ACT - CENTER FOR EXCITONICS -- EFRC; PI - MARC BALDO, Fabrication strategies for nanophotonic devices, G5169095918, G6075373719, G6577162104, G7358767785, TAS::89 0227::TAS RECOVERY; RECOVERY ACT - CENTER FOR EXCITONICS -- EFRC; PI - MARC BALDO, G8640644076, G875209366, G952865507
OpenAlex ID: W2950601501