[Mo-P2-C] Novel optical phenomena and chirality

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

[Mo-P2-C-04] Minimal Perturbations for Chiral-Mode Control
via Asymptotic Exceptional Points in Coupled Non-Hermitian Nanoresonators

〇Kota Yagi^1,2, Takahiro Uemura^1,2, Yuto moritake^1,3, Masaya Notomi^1,2,4 (1. Department of Physics, Inst. of Science Tokyo (Japan), 2. NTT Basic Research Labs., NTT Inc. (Japan), 3. Inst. of Industrial Science, The Univ. of Tokyo (Japan), 4. NTT Nanophotonics Center, NTT Inc. (Japan))

We analytically show that a two-site complex perturbation is the minimal configuration for chiral-mode control in cyclic non-Hermitian resonator systems, and reveal that an asymptotic exceptional point serves as the operating principle for on-chip chiral nanophotonic devices.