APL Quantum (Sep 2024)

Ultra-low density and high performance InAs quantum dot single photon emitters

  • C. Shang,
  • M. De Gregorio,
  • Q. Buchinger,
  • M. Meinecke,
  • P. Gschwandtner,
  • A. Pfenning,
  • T. Huber-Loyola,
  • S. Hoefling,
  • J. E. Bowers

DOI
https://doi.org/10.1063/5.0209866
Journal volume & issue
Vol. 1, no. 3
pp. 036115 – 036115-6

Abstract

Read online

We report the development of high quality InAs quantum dots with an ultra-low density of 2 × 107 cm−2 on (001) GaAs substrates. A significant reduction in the emission wavelength inhomogeneity has been observed. A representative dot has been characterized under cryogenic temperatures, demonstrating a close-to-ideal antibunching of both the exciton and biexciton emissions with a fitted g(2)(0) = 0.008 and 0.059, respectively.