Homogeneous Array of Nanowire-Embedded Quantum Light Emitters

• DOI: 10.1021/nl303075q
• Publication Date: 2013-02-12T04:05:39Z
• Authors: M. N. Makhonin; A. P. Foster; A. B. Krysa; P. W. Fry; D. G. Davies; T. Grange; T. Walther; M. S. Skolnick; L. R. Wilson
• Keywords: Laser linewidth; Biexciton; Quantum wire

The potential for scale-up coupled with minimized system size is likely to be a major determining factor in the realization of applicable quantum information systems. Nanofabrication technology utilizing III-V semiconductor provides path scalable bit (qubit) integration and materials platform combined electronic/photonic functionality. Here, we address key requirement qubit-site emission energy control by demonstrating uniform arrays nanowires, where each nanowire contains single dot. Optical studies dots reveal narrow linewidth exciton biexciton clear state-filling at higher powers. Individual are shown emit nonclassically evidence photon antibunching. A model developed explain unexpectedly large excited state separations as revealed photoluminescence spectra. From measurements more than 40 dots, find energies an ensemble broadening 15 meV. combination deterministic site distribution results readily capable scaling multiqubit applications.