Topological Optical Waveguiding in Silicon and the Transition between Topological and Trivial Defect States

Andrea Blanco-Redondo, Imanol Andonegui, Matthew J. Collins, Gal Harari, Yaakov Lumer, Mikael C. Rechtsman, Benjamin J. Eggleton, and Mordechai Segev
Phys. Rev. Lett. 116, 163901 – Published 20 April 2016; Erratum Phys. Rev. Lett. 117, 129901 (2016)

Abstract

One-dimensional models with topological band structures represent a simple and versatile platform to demonstrate novel topological concepts. Here we experimentally study topologically protected states in silicon at the interface between two dimer chains with different Zak phases. Furthermore, we propose and demonstrate that, in a system where topological and trivial defect modes coexist, we can probe them independently. Tuning the configuration of the interface, we observe the transition between a single topological defect and a compound trivial defect state. These results provide a new paradigm for topologically protected waveguiding in a complementary metal-oxide-semiconductor compatible platform and highlight the novel concept of isolating topological and trivial defect modes in the same system that can have important implications in topological physics.

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  • Received 16 December 2015

DOI:https://doi.org/10.1103/PhysRevLett.116.163901

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Erratum

Erratum: Topological Optical Waveguiding in Silicon and the Transition between Topological and Trivial Defect States [Phys. Rev. Lett. 116, 163901 (2016)]

Andrea Blanco-Redondo, Imanol Andonegui, Matthew J. Collins, Gal Harari, Yaakov Lumer, Mikael C. Rechtsman, Benjamin J. Eggleton, and Mordechai Segev
Phys. Rev. Lett. 117, 129901 (2016)

Authors & Affiliations

Andrea Blanco-Redondo1,*, Imanol Andonegui1,2, Matthew J. Collins3, Gal Harari4, Yaakov Lumer4, Mikael C. Rechtsman3, Benjamin J. Eggleton1, and Mordechai Segev4

  • 1Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), Institute of Photonics and Optical Science (IPOS), School of Physics, The University of Sydney, New South Wales 2006, Australia
  • 2Departamento de Fisica Aplicada I, Escuela Tecnica Superior Ingenieria de Bilbao, Universidad del Pais Vasco (UPV/EHU), Alameda Urquijo s/n, 48013 Bilbao, Spain
  • 3Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802-6300, USA
  • 4Department of Physics, Technion–Israel Institute of Technology, Haifa 32000, Israel

  • *andrea.blancoredondo@sydney.edu.au

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Issue

Vol. 116, Iss. 16 — 22 April 2016

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