Quantum Polaritonics

An international research partnership of state-of-the-art experimental laboratories and theoretical groups between the University of Cambridge, MIT-Skoltech, and the University of Southampton.

Polariton Circuits

In this project we investigate the fundamental properties of spinor polariton condensates towards polariton circuits. We aim to develop the toolbox for all-optical writing of polariton circuits on planar microcavities and utilize the spin of polaritons in configuration that bear applications in all optical switching, optical routing, and volatile optical memory components.

Key researchers:

Dr Alexis Askitopoulos, Dr Namig Hasanov

Kirill Kalinin, Lucy Pickup

Relevant publications:

Title: Optical bistability under non-resonant excitation in spinor polariton condensates

Authors: L. Pickup, K. Kalinin, A. Askitopoulos, Z. Hatzopoulos, P. G. Savvidis, N. G. Berloff, P.G. Lagoudakis,

Source: arXiv:1709.07351 (2017)


Title: Nonresonant optical control of a spinor polariton condensate

Authors: A. Askitopoulos, K. Kalinin, T. C. H. Liew, P. Cilibrizzi, Z. Hatzopoulos, P. G. Savvidis, N. G. Berloff, and P. G. Lagoudakis.

Source: Phys. Rev. B 93, 205307 (20 May 2016).


Title: Half-skyrmion spin textures in polariton microcavities

Authors: Pasquale Cilibrizzi, Helgi Sigurdsson, Tim CH Liew, Hamid Ohadi, Alexis Askitopoulos, Sebastian Brodbeck, Christian Schneider, Ivan A Shelykh, Sven Höfling, Janne Ruostekoski, Pavlos Lagoudakis

Source: Physical Review B 94 (4), 045315 (2016)


Title: Polariton Spin Whirls

Authors: P. Cilibrizzi, H. Sigurdsson, T.C.H. Liew, H. Ohadi, S. Wilkinson, A. Askitopoulos, I.A. Shelykh and P.G. Lagoudakis.

Source: Physical Review B 92, 155308 (2015)


Title: Robust platform for engineering pure-quantum-state transitions in polariton condensates

Authors: A Askitopoulos, TCH Liew, H Ohadi, Z Hatzopoulos, PG Savvidis, PG Lagoudakis

Source: Phys.Rev. B 92, 035305 (2015)


Title: "Spin noise spectroscopy of a single quantum well microcavity”

Author(s): S.V. Poltavtsev, I.I. Ryzhov, M.M. Glazov, G.G. Kozlov, V.S. Zapasskii, A.V. Kavokin, P.G. Lagoudakis, D.S. Smirnov, E.L. Ivchenko

Source: Physical Review B Volume: 89 Issue: 8 Article Number: 081304 (2014)


Title: "Optics of spin-noise-induced gyrotropy of an asymmetric microcavity"

Author(s): S.V. Poltavtsev; I.I. Ryzhov; R.V. Cherbunin; A.V. Mikhailov; N.E. Kopteva; G.G. Kozlov; K.V. Kavokin; V.S. Zapasskii; P.G. Lagoudakis; A.V. Kavokin

Source: Physical Review B Volume: 89 Article Number: 205308 (2014)


Title: "Polariton condensation in an optically induced two-dimensional potential"

Author(s): Askitopoulos, A.; Ohadi, H.; Kavokin, A. V.; Hatzopoulos, Z; Savvidis, P.G.; Lagoudakis, P.G.

Source: Physical Review B Volume: 88 Article Number: 041308 (2013)


Title: "Nonlinear optical spin Hall effect and long-range spin transport in polariton lasers"

Author(s): E. Kammann, T.C.H. Liew, H. Ohadi, P. Cilibrizzi, P. Tsotsis, Z. Hatzopoulos, P.G. Savvidis, A.V. Kavokin, P.G. Lagoudakis

Source: Phys. Rev. Lett. 109, 036404 (2012)


Title: "Spontaneous symmetry breaking in a polariton and photon laser"

Author(s): H. Ohadi, E. Kammann, T.C.H. Liew, K.G. Lagoudakis, A.V. Kavokin, P.G. Lagoudakis

Source: Phys. Rev. Lett. 109, 016404 (2012)


Title: "Optical analogue of the spin Hall effect in a photonic cavity"

Author(s): Maria Maragkou, Caryl E. Richards, Tomas Ostatnický, Alastair J. D. Grundy, Joanna Zajac, Maxime Hugues, Wolfgang Langbein, and Pavlos G. Lagoudakis

Source: Optics Letters, Vol. 36, Issue 7, pp. 1095-1097 (2011)