[22p-P03-1~8] 3.10 Photonic structures and phenomena (formerly 3.11)

[22p-P03-7] Large-scale automated optimization of hole radius and position of photonic crystal nanocavity

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

Keywords:photonic crystal, optical nanocavity, photonics chip

Recently it was reported that L3 photonic crystal nanocavity which Q-factor has been increased by the scaling up the hole-position modulation can have a further higher Q-factor by additional hole radius modulation. Here we report the detail study of automated hole-radius and hole-position optimization of L3 nanocavity with changing the holes to be modulated. By expanding the scale of the modulation, we obtained several times higher Q-values in L3 nanocavities having different r/a values by adding radius modulation.