Title :

Few-photon all-optical phase rotation in a quantum-well micropillar cavity

Author(s) :

Kuriakose, Tintu [Auteur]
Department of Physics and Astronomy [Sheffield]
Walker, Paul M. [Auteur]
Department of Physics and Astronomy [Sheffield]
Dowling, Toby [Auteur]
Department of Physics and Astronomy [Sheffield]
Kyriienko, Oleksandr [Auteur]
University of Exeter
Shelykh, Ivan A. [Auteur]
ITMO University [Russia]
St-Jean, Phillipe [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Zambon, Nicola Carlon [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Lemaître, Aristide [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Sagnes, Isabelle [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Legratiet, Luc [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Harouri, Abdelmounaim [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Ravets, Sylvain [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Skolnick, Maurice S. [Auteur]
Department of Physics and Astronomy [Sheffield]
Amo Garcia, Alberto [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Bloch, Jacqueline [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Krizhanovskii, Dmitry N. [Auteur]
Department of Physics and Astronomy [Sheffield]

Journal title :

Nature Photonics

Pages :

566-569

Publisher :

Nature Publishing Group

Publication date :

2022-08

ISSN :

1749-4885

HAL domain(s) :

Physique [physics]/Physique [physics]/Optique [physics.optics]

English abstract : [en]

Photonic platforms are an excellent setting for quantum technologies because weak photon-environment coupling ensures long coherence times. The second key ingredient for quantum photonics is interactions between photons, ...
Show more >Photonic platforms are an excellent setting for quantum technologies because weak photon-environment coupling ensures long coherence times. The second key ingredient for quantum photonics is interactions between photons, which can be provided by optical nonlinearities in the form of cross-phase-modulation (XPM). This approach underpins many proposed applications in quantum optics and information processing, but achieving its potential requires strong single-photon-level nonlinear phase shifts and also scalable nonlinear elements. In this work we show that the required nonlinearity can be provided by exciton-polaritons in micropillars with embedded quantum wells. These combine the strong interactions of excitons with the scalability of micrometer-sized emitters. We observe XPM up to $3 \pm 1$ mrad per particle using laser beams attenuated to below single photon average intensity. With our work serving as a first stepping stone, we lay down a route for quantum information processing in polaritonic lattices.Show less >

Language :

Anglais

Popular science :

Non

ANR Project :

Centre Européen pour les Mathématiques, la Physique et leurs Interactions

Collections :

• Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL