• Rapid Communication

Photodynamics of quantum emitters in hexagonal boron nitride revealed by low-temperature spectroscopy

Bernd Sontheimer, Merle Braun, Niko Nikolay, Nikola Sadzak, Igor Aharonovich, and Oliver Benson
Phys. Rev. B 96, 121202(R) – Published 18 September 2017
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Abstract

Quantum emitters in hexagonal boron nitride (hBN) have recently emerged as promising bright single photon sources. In this Rapid Communication we investigate in detail their optical properties at cryogenic temperatures. In particular, we perform temperature-resolved photoluminescence studies and measure photon coherence times from the hBN emitters. The obtained value of 81(1)ps translates to a width of 6.5GHz which is higher than the Fourier transform limited value of 32MHz. To account for the photodynamics of the emitter, we perform ultrafast spectral diffusion measurements that partially account for the coherence times. Our results provide important insight into the relaxation processes in quantum emitters in hBN which is mandatory to evaluate their applicability for quantum information processing.

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  • Received 19 April 2017

DOI:https://doi.org/10.1103/PhysRevB.96.121202

©2017 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & TechnologyAtomic, Molecular & OpticalCondensed Matter, Materials & Applied Physics

Authors & Affiliations

Bernd Sontheimer1,*, Merle Braun1, Niko Nikolay1, Nikola Sadzak1, Igor Aharonovich2, and Oliver Benson1

  • 1Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, D-12489 Berlin, Germany
  • 2School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia

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Issue

Vol. 96, Iss. 12 — 15 September 2017

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