III-V quantum light source and cavity-QED on Silicon
Abstract
Non-classical light sources offer a myriad of possibilities in fundamental science and applications including quantum cryptography and quantum lithography. Single photons can encode quantum information and multi-qubit gates in silica waveguide circuits have been used to demonstrate linear optical quantum computing. Scale-up requires miniaturisation of the waveguide circuit and multiple photon sources. Silicon photonics, driven by the incentive of optical interconnects, is a highly promising platform for the passive components, but integrated light sources are limited by silicon's indirect band-gap. III-V semiconductor quantum-dots, on the other hand, are proven quantum emitters. Here we demonstrate single-photon emission from quantum-dots coupled to photonic crystal nanocavities fabricated from III-V material grown directly on silicon substrates. The high quality of the III-V material and photonic structures is emphasized by observation of the strong-coupling regime. This work opens-up the advantages of silicon photonics to the integration and scale-up of solid-state quantum optical systems.
Cite
@article{arxiv.1211.5254,
title = {III-V quantum light source and cavity-QED on Silicon},
author = {Isaac J. Luxmoore and Romain Toro and Osvaldo Del Pozo-Zamudio and Nicholas A. Wasley and Evgeny A. Chekhovich and Ana M. Sanchez and Richard Beanland and A. Mark Fox and Maurice S. Skolnick and Huiyun Y. Liu and Alexander I. Tartakovskii},
journal= {arXiv preprint arXiv:1211.5254},
year = {2013}
}