[21p-A101-1~16] 3.10 Photonic structures and phenomena (formerly 3.11)

[21p-A101-9] 3D-FDTD analysis of GaN based topological photonic crystals in the visible wavelength

〇Yamato Takano¹, Koji Yoneta¹, Koki Abe¹, Akihiko Kikuchi^1,2,3 (1.Sophia Univ., 2.Sophia Photonics Reserch Center, 3.Sophia Semiconductor Reserch Institute)

Keywords:Topological phtonic crystal, Topological photonics, FDTD

Topological PhC has strong robustness against crystal defects and bending, and is expected to be applied to novel optical devices such as topological bulk-edge lasers, since it exhibits unique propagation phenomena such as unidirectional propagation and scattering-free propagation. We report on the structure dependence of GaN-based membrane topological PhC in the short wavelength region of visible light by performing photonic band calculations of three-dimensional (3D) models using the finite-difference time-domain (FDTD) method.