Electrical control of nonlinear quantum optics in a nano-photonic waveguide

Hallett, Dominic; Foster, Andrew P.; Hurst, David L.; Royall, Ben; Kok, Pieter; Clarke, Edmund; Itskevich, Igor E.; Fox, A. Mark; Skolnick, Maurice S.; Wilson, Luke R.

Abstract

© 2018 Optical Society of America. Quantum photonics is a rapidly developing platform for future quantum network applications. Waveguide-based architectures, in which embedded quantum emitters act as both nonlinear elements to mediate photon–photon interactions and as highly coherent single-photon sources, offer a highly promising route to realize such networks. A key requirement for the scale-up of the waveguide architecture is local control and tunability of individual quantum emitters. Here, we demonstrate electrical control, tuning, and switching of the nonlinear photon–photon interaction arising due to a quantum dot embedded in a single-mode nano-photonic waveguide. A power-dependent waveguide transmission extinction as large as 40 2% is observed on resonance. Photon statistics measurements show clear, voltage-controlled bunching of the transmitted light and antibunching of the reflected light, demonstrating the single-photon, quantum character of the nonlinearity. Importantly, the same architecture is also shown to act as a source of highly coherent, electrically tunable single photons. Overall, the platform presented addresses the essential requirements for the implementation of photonic gates for scalable nano-photonic-based quantum information processing.

Citation

Hallett, D., Foster, A. P., Hurst, D. L., Royall, B., Kok, P., Clarke, E., Itskevich, I. E., Fox, A. M., Skolnick, M. S., & Wilson, L. R. (2018). Electrical control of nonlinear quantum optics in a nano-photonic waveguide. Optica, 5(5), 644-650. https://doi.org/10.1364/optica.5.000644

• Journal Article Type: Article
• Acceptance Date: Apr 6, 2018
• Online Publication Date: May 16, 2018
• Publication Date: May 20, 2018
• Deposit Date: Jun 12, 2018
• Publicly Available Date: Jun 13, 2018
• Journal: Optica
• Print ISSN: 2334-2536
• Publisher: Optica
• Peer Reviewed: Peer Reviewed
• Volume: 5
• Issue: 5
• Pages: 644-650
• DOI: https://doi.org/10.1364/optica.5.000644
• Public URL: https://hull-repository.worktribe.com/output/873619
• Publisher URL: https://www.osapublishing.org/optica/abstract.cfm?uri=optica-5-5-644
• Contract Date: Jun 12, 2018