Generation of Weyl points in coupled optical microdisk-resonator arrays via external modulation

Generation of Weyl points in coupled optical microdisk-resonator arrays via external modulation We theoretically propose a scheme to produce Weyl points in two-dimensional (2D) optical microdisk-resonator arrays, which undergo a dynamical modulation with temporal periodicity. By mapping the set of modes supported by each resonator to a synthetic frequency dimension, the 2D lattice is equivalent to a three-dimensional (3D) time-independent lattice. We show that, by breaking the inversion symmetry (I symmetry) or introducing artificial gauge fields, Weyl points can be formed, leading to anomalous topological edge states and Fermi arcs. This approach may provide a way to design robust topological photonic devices on chips and future applications for integrated photonics. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review A American Physical Society (APS)

Generation of Weyl points in coupled optical microdisk-resonator arrays via external modulation

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Generation of Weyl points in coupled optical microdisk-resonator arrays via external modulation

Abstract

We theoretically propose a scheme to produce Weyl points in two-dimensional (2D) optical microdisk-resonator arrays, which undergo a dynamical modulation with temporal periodicity. By mapping the set of modes supported by each resonator to a synthetic frequency dimension, the 2D lattice is equivalent to a three-dimensional (3D) time-independent lattice. We show that, by breaking the inversion symmetry (I symmetry) or introducing artificial gauge fields, Weyl points can be formed, leading to anomalous topological edge states and Fermi arcs. This approach may provide a way to design robust topological photonic devices on chips and future applications for integrated photonics.
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Publisher
The American Physical Society
Copyright
Copyright © ©2017 American Physical Society
ISSN
1050-2947
eISSN
1094-1622
D.O.I.
10.1103/PhysRevA.96.013811
Publisher site
See Article on Publisher Site

Abstract

We theoretically propose a scheme to produce Weyl points in two-dimensional (2D) optical microdisk-resonator arrays, which undergo a dynamical modulation with temporal periodicity. By mapping the set of modes supported by each resonator to a synthetic frequency dimension, the 2D lattice is equivalent to a three-dimensional (3D) time-independent lattice. We show that, by breaking the inversion symmetry (I symmetry) or introducing artificial gauge fields, Weyl points can be formed, leading to anomalous topological edge states and Fermi arcs. This approach may provide a way to design robust topological photonic devices on chips and future applications for integrated photonics.

Journal

Physical Review AAmerican Physical Society (APS)

Published: Jul 10, 2017

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