Tunable and high-purity room temperature single-photon emission from atomic defects in hexagonal boron nitride
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 26, 2017
- Source ID
- 10.1038/s41467-017-00810-2
Entities
People
- Benjamin Lienhard
- Dirk Englund
- Dmitri Efetov
- Gabriele Grosso
- Hyowon Moon
- Igor Aharonovich
- Marco M. Furchi
- Michael J Ford
- Pablo Jarillo-Herrero
- Sajid Ali