Bound states in the continuum in the dielectric waveguide modes anti-crossed by metal grating: Branch selection by polarization

Ryo Kikkawa; Munehiro Nishida; Yutaka Kadoya

Presentation information

Oral presentation

3 Optics and Photonics » 3.12 Nanoscale optical science and near-field optics

[10p-W621-1~17] 3.12 Nanoscale optical science and near-field optics

Sun. Mar 10, 2019 1:45 PM - 6:30 PM W621 (W621)

Tadashi Kawazoe(TDU), Masanobu Haraguchi(Tokushima Univ.), Kiyoshi Kobayashi(Univ. of Yamanashi)

2:30 PM - 2:45 PM

△ [10p-W621-4] Bound states in the continuum in the dielectric waveguide modes anti-crossed by metal grating: Branch selection by polarization

〇(DC)Ryo Kikkawa¹, Munehiro Nishida¹, Yutaka Kadoya¹ (1.Hiroshima Univ.)

Keywords:Bound states in the continuum, BIC, Metal Grating, Optical Waveguide

We investigated Bound states in the continuum in the dielectric waveguide with metal grating multilayer structure. BIC was observed at one branch of anti-crossing point which was caused by the coupling of two different dielectric waveguie modes. We found the brach at which BIC lies can be switched by the polarization of incident wave. We will show the detailed mechanisms to determine the branch at which BIC lies.