[22p-A308-1~17] 3.10 Photonic structures and phenomena (formerly 3.11)

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[22p-A308-10] Experimental observation of propagation of off-Γ BIC in 1D grating structures

〇Koumei Hamaya¹, Moritake Yuto¹, Yoda Taiki¹, Ono Masaaki^2,3, Kuramochi Eiichi^2,3, Notomi Masaya^1,2,3 (1.Tokyo Tech, 2.NTT NPC, 3.NTT BRL)

Keywords:

Bound states In the Continuum,grating,waveguide

In nanophotonics, modes that are above the light line but confined within the structure are called Bound states In Continuum (BIC). Off-Γ BIC can propagate within the slab because it appears at non-symetric wave number point. This can be used to create filter waveguides that transmit only light of a specific frequency.This study reports observation of in-plane propagation at BIC, which has not been paid much attention, and is expected to lead to new applications of propagating at BIC.