[10p-B11-1~17] 3.10 Photonic structures and phenomena

6:15 PM - 6:30 PM JST(9:15 AM - 9:30 AM UTC)

[10p-B11-17] Chiral Mode Generation in Non-Hermitian Coupled-Resonator Systems

〇Kota Yagi^1,2, Takahiro Uemura², Yuto Moritake^1,3, Masaya Notomi^1,2,4 (1.Science Tokyo, 2.NTT BRL, 3.The Univ. of Tokyo, 4.NTT NPC)

Keywords:

non-Hermitian,Exceptional Point,OAM

Exceptional points, which are unique to non-Hermitian systems, have attracted considerable attention as a novel principle for controlling light because of their distinctive property of eigenstate coalescence. In our previous work, using an analysis of coupled-resonator systems, we demonstrated that chiral modes carrying orbital angular momentum (OAM) can be induced by generating an asymptotic exceptional point from a Hermitian degeneracy. In this study, we classify the complex perturbation patterns required to generate asymptotic exceptional points and propose design guidelines for chiral eigenstates toward applications in integrated photonic functionalities.