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Tunable photon statistics exploiting the Fano effect in a waveguide

Foster, A P; Hallett, D; Iorsh, I V; Sheldon, S J; Godsland, M R; Royall, B; Clarke, E; Shelykh, I A; Fox, A M; Skolnick, M S; Itskevich, I E; Wilson, L R

Authors

A P Foster

D Hallett

I V Iorsh

S J Sheldon

M R Godsland

B Royall

E Clarke

I A Shelykh

A M Fox

M S Skolnick

L R Wilson



Abstract

A strong optical nonlinearity arises when coherent light is scattered by a semiconductor quantum dot (QD) coupled to a nano-photonic waveguide. We exploit the Fano effect in such a waveguide to control the phase of the quantum interference underpinning the nonlinearity, experimentally demonstrating a tunable quantum optical filter which converts a coherent input state into either a bunched, or antibunched non-classical output state. We show theoretically that the generation of non-classical light is predicated on the formation of a two-photon bound state due to the interaction of the input coherent state with the QD. Our model demonstrates that the tunable photon statistics arise from the dependence of the sign of two-photon interference (either constructive or destructive) on the detuning of the input relative to the Fano resonance.

Journal Article Type Article
Publication Date May 3, 2019
Journal Physical Review Letters
Print ISSN 0031-9007
Electronic ISSN 1079-7114
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 122
Issue 17
Article Number 173603
Series ISSN 0031-9007, 1079-7114
APA6 Citation Foster, A. P., Hallett, D., Iorsh, I. V., Sheldon, S. J., Godsland, M. R., Royall, B., …Wilson, L. R. (2019). Tunable photon statistics exploiting the Fano effect in a waveguide. Physical review letters, 122(17), https://doi.org/10.1103/PhysRevLett.122.173603
DOI https://doi.org/10.1103/PhysRevLett.122.173603
Keywords Quantum optics; Photon statistics; Quantum dots
Publisher URL https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.173603

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©2019 The authors - reproduced by permission of APS.



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