[16a-P06-1~5] 3.10 Photonic structures and phenomena

[16a-P06-1] Q factor variation of heterostructure nanocavities without mirror symmetry

〇(B)Yuta Kanemaru¹, Takashi Asano², Ayumi Ishihara³, Wataru Takahama³, Susumu Noda², Yasushi Takahashi³ (1.Osaka Pref. Univ., 2.Kyoto Univ., 3.Osaka Met. Univ.)

Keywords:

silicon nanocavity,machine learning,high-Q nanocavity

We worked on enhancing the Q factor of photonic crystal nanocavities and achieved an experimental Q factor of 11 million using a heterostructure. To suppress the Q factor variations, which are crucial for practical applications, we designed cavities resistant to air hole fluctuations. Compared to conventional symmetric designs, we confirmed that asymmetric cavities reduced Q factor variations due to position fluctuations by 20%. In this study, we investigated the Q factor variations of multi-heterostructure nanocavities without mirror symmetry through simulations, and the results are reported here.