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Topological photonics based on dielectric material (Conference Presentation)
Author(s): Xiao Hu
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Paper Abstract

We propose a photonic crystal with Z2 topology purely based on dielectric materials. Deforming the honeycomb lattice of dielectric cylinders, such as silicon, we identify a pseudo spin degree of freedom, and the associated time-reversal symmetry similar to that of electronic systems [1]. We demonstrate theoretically the nontrivial topology by showing photonic band inversion, and helical edge electromagnetic-wave propagation. Without requiring gyromagnetic, bi-anisotropic or piezo-magnetic materials, this topological photonic crystal can be fabricated easily and is compatible to electronics. Reference: [1] L.-H. Wu and X. Hu: Phys. Rev. Lett. vol. 114, 223901 (2015).

Paper Details

Date Published: 9 November 2016
PDF: 1 pages
Proc. SPIE 9920, Active Photonic Materials VIII, 99201G (9 November 2016); doi: 10.1117/12.2237228
Show Author Affiliations
Xiao Hu, National Institute for Materials Science (Japan)


Published in SPIE Proceedings Vol. 9920:
Active Photonic Materials VIII
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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Topological photonics based on dielectric material (Conference Presentation)



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