Spin Domains in One-Dimensional Conservative Polariton Solitons

• Published in: ACS Photonics
• Main Authors: Sich, Maksym, Tapia-Rodriguez, Lucy E., Sigurdsson, Helgi, Walker, Paul M., Clarke, Edmund, Shelykh, Ivan, Royall, Benjamin, Sedov, Evgeny S., Kavokin, Alexey V., Skryabin, Dmitry V., Skolnick, Maurice S., Krizhanovskii, Dmitry N.
• Other Authors: Raunvísindastofnun (HÍ), Science Institute (UI), Verkfræði- og náttúruvísindasvið (HÍ), School of Engineering and Natural Sciences (UI), Háskóli Íslands, University of Iceland
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Chemical Society (ACS) 2018
• Subjects: Microcavity; Exciton−polariton; Soliton; One-dimensional kinetics; Nonlinear physics; TE−TM splitting; Skautun (rafsegulfræði); Öreindir; Eðlisfræði; Iceland
• Online Access: https://hdl.handle.net/20.500.11815/1183; https://doi.org/10.1021/acsphotonics.8b01410

Publisher's version (útgefin grein) We report stable orthogonally polarized domains in high-density polariton solitons propagating in a semiconductor microcavity wire. This effect arises from spin-dependent polariton–polariton interactions and pump-induced imbalance of polariton spin populations. The interactions result in an effective magnetic field acting on polariton spin across the soliton profile, leading to the formation of polarization domains. Our experimental findings are in excellent agreement with theoretical modeling taking into account these effects. L.E.T.R. acknowledges support from CONACYT, the Mexican Council for Sciences. H.S. and I.A.S. acknowledge support by the Research Fund of the University of Iceland, The Icelandic Research Fund, Grant No. 163082-051. This work was supported by megagrant 14.Y26.31.0015 of the Ministry of Education and Science of the Russian Federation. I.A.S. acknowledges support from Goszadanie No. 3.2614.2017/4.6. M.S.S. and D.N.K. acknowledge the support from UK EPSRC grant EP/N031776/1. A.V.K. acknowledges the St. Petersburg State University for research grant 11.34.2.2012 and the financial support from the Russian Foundation for Basic Research (Project No. 15-52-12018) and Deutsche Forschungsgemeinschaft (DFG) in the framework of International Collaborative Research Center TRR 160 Peer Reviewed