[19p-E207-1~9] 3.11 Photonic structures and phenomena

[19p-E207-3] Automated multi-hole optimization of photonic crystal nanocavity based on FEM simulation

〇Eiichi Kuramochi^1,2, Theo Martel², Shota Kita^1,2, Akihiko Shinya^1,2, Masaya Notomi^1,2 (1.NTT-NPC, 2.NTT-BRL)

Keywords:photonic crystal, nanocavity, biosensor

We developed an automated optimization code that optimized the position of the holes comprising the photonic crystal nanocavity based on FEM simulation of the cavity mode. We optimized the single-cell (H1) slotted nanocavity and the code generated ultrahigh-Q nanocavity designs with optimizing up to 22 shift parameters (44 holes). According to the automatically generated designs, we fabracated H1 slotted nanocavities and we experimentally obtained ultrahigh Q factors.