Subnanosecond spectral diffusion of a single quantum dot in a nanowire

Abstract

We have studied spectral diffusion of the photoluminescence of a single CdSe quantum dot inserted in a ZnSe nanowire. We have measured the characteristic diffusion time as a function of pumping power and temperature using a recently developed technique [G. Sallen et al, Nature Photon. \textbf{4}, 696 (2010)] that offers subnanosecond resolution. These data are consistent with a model where only a \emph{single} carrier wanders around in traps located in the vicinity of the quantum dot.

References in corpus (5)

• Photonic quantum technologies
• Quantum Memories. A Review based on the European Integrated Project "Qubit Applications (QAP)"
• Giant Optical Non-linearity induced by a Single Two-Level System interacting with a Cavity in the Purcell Regime
• Subnanosecond spectral diffusion measurement using photon correlation
• Defect-free ZnSe nanowire and nano-needle nanostructures

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• The effect of photo-generated carriers on the spectral diffusion of a quantum dot coupled to a photonic crystal cavity
• Spin dynamics of an individual Cr atom in a semiconductor quantum dot under optical excitation
• Control of single photon emitters in semiconductor nanowires by surface acoustic waves
• Resonant optical control of the spin of a single Cr atom in a quantum dot
• Optical control of an individual Cr spin in a semiconductor quantum dot