[21p-A308-1~12] 3.10 Photonic structures and phenomena (formerly 3.11)

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)

[21p-A308-11] Zero-refractive index states using the Dirac cone at the M-point in photonic crystals

〇Sho Watanabe^1,2, Yuto Moritake¹, Masaaki Ono^2,3, Eiichi Kuramochi^2,3, Masaya Notomi^1,2,3 (1.Tokyo Tech, 2.NTT BRL, 3.NTT NPC)

Keywords:

photonic crystal,zero refractive index,Dirac cone

Zero refractive index states in photonic crystals have been reported using Dirac cones at the Γ point. In this study, we propose a new structure with a Dirac cone below the light line on the M point, which has the same symmetry as the Γ point. In the simulation, we observed the diffuse propagation of light and the cloaking effect, which are peculiar to the zero-refractive-index state, at the Dirac point.