Direct measurement of quantum efficiency of single-photon emitters in hexagonal boron nitride
Nikolay N, Mendelson N, Oezelci E, Sontheimer B, Boehm F, Kewes G, Toth M, Aharonovich I, Benson O (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 6
Pages Range: 1084-1088
Journal Issue: 8
Abstract
Single-photon emitters (SPEs) in two-dimensional materials are promising candidates for the future generation of quantum photonic technologies. In this work, we experimentally determine the quantum efficiency (QE) of SPEs in few-layer hexagonal boron nitride (h-BN). We employ a metal hemisphere that is attached to the tip of an atomic force microscope to directly measure the lifetime variation of the SPEs as the tip approaches the h-BN. This technique enables nondestructive, yet direct and absolute measurement of the QE of SPEs. We find that the emitters exhibit very high QEs approaching (87 ± 7)% at wavelengths of ≈580 nm, which is among the highest QEs recorded for a solid-state SPE.
Involved external institutions
Germany (DE)
Australia (AU)How to cite
APA:
Nikolay, N., Mendelson, N., Oezelci, E., Sontheimer, B., Boehm, F., Kewes, G.,... Benson, O. (2019). Direct measurement of quantum efficiency of single-photon emitters in hexagonal boron nitride. Optica, 6(8), 1084-1088. https://doi.org/10.1364/OPTICA.6.001084
MLA:
Nikolay, Niko, et al. "Direct measurement of quantum efficiency of single-photon emitters in hexagonal boron nitride." Optica 6.8 (2019): 1084-1088.
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