Skip to main content

Research Repository

Advanced Search

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.


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

I. E. Itskevich

L. R. Wilson


A strong optical nonlinearity arises when coherent light is scattered by a semiconductor quantum dot coupled to a nanophotonic 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 an antibunched nonclassical output state. We show theoretically that the generation of nonclassical light is predicated on the formation of a two-photon bound state due to the interaction of the input coherent state with the quantum dot. 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.


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), Article 173603.

Journal Article Type Article
Acceptance Date Mar 22, 2019
Online Publication Date May 3, 2019
Publication Date May 3, 2019
Deposit Date Jun 10, 2019
Publicly Available Date Oct 27, 2022
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
Keywords Quantum optics; Photon statistics; Quantum dots
Public URL
Publisher URL


Article (3.6 Mb)

Copyright Statement
©2019 The authors - reproduced by permission of APS.

You might also like

Downloadable Citations