Blue-to-green single photons from InGaN/GaN dot-in-a-wire nanowire ordered arrays

Abstract

Single-photon emitters (SPEs) are at the basis of many applications for quantum information management. Semiconductor-based SPEs are best suited for practical implementations because of high design flexibility, scalability and integration potential in practical devices. Single-photon emission from ordered arrays of InGaN nano-disks embedded in GaN nanowires is reported. Intense and narrow optical emission lines from quantum dot-like recombination centers are observed in the blue-green spectral range. Characterization by electron microscopy, cathodoluminescence and micro-photoluminescence indicate that single photons are emitted from regions of high In concentration in the nano-disks due to alloy composition fluctuations. Single-photon emission is determined by photon correlation measurements showing deep anti-bunching minima in the second-order correlation function. The present results are a promising step towards the realization of on-site/on-demand single-photon sources in the blue-green spectral range operating in the GHz frequency range at high temperatures.

arXiv comment7 pages

References in corpus (9)

• Review article: Linear optical quantum computing
• Review: Semiconductor Quantum Light Sources
• A Diamond Nanowire Single Photon Antenna
• Engineered Quantum Dot Single Photon Sources
• Controlled Single-Photon Emission from a Single Trapped Two-Level Atom
• Polarized emission of GaN/AlN quantum dots : single dot spectroscopy and symmetry-based theory
• Single Photon Emission from Site-Controlled InGaN/GaN Quantum Dots
• Polarized emission lines from A- and B-type excitonic complexes in single InGaN/GaN quantum dots
• Ordered arrays of InGaN/GaN dot-in-a-wire nanostructures as single photon emitters

Cited by in corpus (5)

• Emission of Linearly Polarized Single Photons from Quantum Dots Contained in Nonpolar, Semipolar, and Polar Sections of Pencil-Like InGaN/GaN Nanowires
• Acoustically regulated optical emission dynamics from quantum dot-like emission centers in GaN/InGaN nanowire heterostructures
• Control of single photon emitters in semiconductor nanowires by surface acoustic waves
• Formation mechanisms of single-crystalline InN quantum dots fabricated via droplet epitaxy
• Influence of strain relaxation in axial (In,Ga)N/GaN nanowire heterostructures on their electronic properties