Electrically driven quantum light emission in electromechanically tuneable photonic crystal cavities

M. Petruzzella, F. M. Pagliano, Z. Zobenica, S. Birindelli, M. Cotrufo, F. W.M. Van Otten, R. W. Van Der Heijden, A. Fiore

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Abstract

A single quantum dot deterministically coupled to a photonic crystal environment constitutes an indispensable elementary unit to both generate and manipulate single-photons in next-generation quantum photonic circuits. To date, the scaling of the number of these quantum nodes on a fully integrated chip has been prevented by the use of optical pumping strategies that require a bulky off-chip laser along with the lack of methods to control the energies of nano-cavities and emitters. Here, we concurrently overcome these limitations by demonstrating electrical injection of single excitonic lines within a nano-electro-mechanically tuneable photonic crystal cavity. When an electrically driven dot line is brought into resonance with a photonic crystal mode, its emission rate is enhanced. Anti-bunching experiments reveal the quantum nature of these on-demand sources emitting in the telecom range. These results represent an important step forward in the realization of integrated quantum optics experiments featuring multiple electrically triggered Purcell-enhanced single-photon sources embedded in a reconfigurable semiconductor architecture.

Original languageEnglish
Article number251101
Number of pages7
JournalApplied Physics Letters
Volume111
Issue number25
DOIs
Publication statusPublished - 18 Dec 2017

Keywords

  • single-photon
  • Light emitting diodes
  • Quantum photonics integrated circuits

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