[10p-C310-1~15] 3.1 Basic optics and frontier of optics

5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)English Presentation

[10p-C310-12] Design of H1 photonic crystal nanocavities supporting high-Q quadrupole modes

〇Ruoxi Zhao¹, Guangtai Lu¹, Satoshi Iwamoto^1,2 (1.RCAST Univ. Tokyo, 2.IIS Univ. Tokyo)

Keywords:

high-Q,optical resonator,quadrupole modes

High-quality-factor (high-Q) optical nanocavities are promising for enhancing light-matter interactions. An H1 photonic crystal (PhC) nanocavity is a versatile platform that can support dipole, quadrupole, and hexapole modes. While the high-Q dipole and hexapole modes have been extensively studied in the H1 PhC nanocavities, the quadrupole modes remain less explored. Here, we propose an H1 PhC nanocavity design that supports two degenerate TE quadrupole modes with Q-factors exceeding 1 million. To the best of our knowledge, this value represents the highest Q-factor ever reported for quadrupole modes in H1 PhC nanocavities.