All-optical quantum fluid spin beam splitter

A. Askitopoulos, A. V. Nalitov, E. S. Sedov, L. Pickup, E. D. Cherotchenko, Z. Hatzopoulos, P. G. Savvidis, A. V. Kavokin, and P. G. Lagoudakis
Phys. Rev. B 97, 235303 – Published 6 June 2018
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    Abstract

    We investigate the spin behavior of the first excited state of a polariton condensate in an optical trap by means of polarization resolved spectroscopy. The interplay between the repulsive polariton interactions and the gain saturation results in a nontrivial spontaneous switching between the two quasidegenerate spatial modes of the polariton condensate. As a result, the polarization pattern of the emitted light dramatically changes. Successful harnessing of this effect can lead to a spin-demultiplexing device for polariton-based optical integrated circuits.

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    • Received 23 October 2017
    • Revised 14 December 2017

    DOI:https://doi.org/10.1103/PhysRevB.97.235303

    ©2018 American Physical Society

    Physics Subject Headings (PhySH)

    1. Research Areas
    Exciton polaritonSpintronics
    1. Physical Systems
    Polariton condensateQuantum fluids & solids
    Condensed Matter, Materials & Applied Physics

    Authors & Affiliations

    A. Askitopoulos1,2,*, A. V. Nalitov1,†, E. S. Sedov1,3, L. Pickup1, E. D. Cherotchenko1, Z. Hatzopoulos4, P. G. Savvidis4,5,6, A. V. Kavokin1,7, and P. G. Lagoudakis1,2

    • 1School of Physics and Astronomy, University of Southampton, Southampton SO171BJ, United Kingdom
    • 2Skolkovo Institute of Science and Technology Novaya St., 100, Skolkovo 143025, Russian Federation
    • 3Department of Physics and Applied Mathematics, Vladimir State University named after A. G. and N. G. Stoletovs, Gorky street 87, 600000 Vladimir, Russia
    • 4Microelectronics Research Group, IESL-FORTH, P.O. Box 1527, 71110 Heraklion, Crete, Greece
    • 5Department of Materials Science and Technology, University of Crete, 71003 Heraklion, Crete, Greece
    • 6ITMO University, St. Petersburg 197101, Russia
    • 7Spin Optics Laboratory, St. Petersburg State University, 1, Ulianovskaya, St. Peterbsurg 198504, Russia

    • *Corresponding author: Alexis.Askitopoulos@soton.ac.uk
    • †Corresponding author: A.Nalitov@soton.ac.uk

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    Issue

    Vol. 97, Iss. 23 — 15 June 2018

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