Topological photonics based on dielectric material
(Conference Presentation)

Xiao Hu

doi:10.1117/12.2237228

9 November 2016 Topological photonics based on dielectric material (Conference Presentation)

Xiao Hu

Proceedings Volume 9920, Active Photonic Materials VIII; 99201G (2016) https://doi.org/10.1117/12.2237228
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

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).

Conference Presentation

Citation Download Citation

Xiao Hu "Topological photonics based on dielectric material (Conference Presentation)", Proc. SPIE 9920, Active Photonic Materials VIII, 99201G (9 November 2016); https://doi.org/10.1117/12.2237228

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