Electrical control of nonlinear quantum optics in a nano-photonic waveguide
Posted on 2018-05-14 - 20:54
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.
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Hallett, Dominic; Foster, Andrew; Hurst, David; Royall, Ben; Kok, Pieter; Clarke, Edmund; et al. (2018). Electrical control of nonlinear quantum optics in a nano-photonic waveguide. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.4069190
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AUTHORS (10)
DH
Dominic Hallett
AF
Andrew Foster
DH
David Hurst
BR
Ben Royall
PK
Pieter Kok
EC
Edmund Clarke
II
Igor Itskevich
AF
A. Mark Fox
MS
Maurice Skolnick
LW
Luke Wilson