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

5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)

[Mo-P2-C-05] Jordan–Block–Induced State Selection across an Exceptional Point in a Coupled Waveguide System

〇Se Yeon Yu¹, Guangtai Lu¹, Natsuko Ishida¹, Satoshi Iwamoto¹ (1. The Univ. of Tokyo (Japan))

We propose deterministic optical mode selection via direct exceptional-point (EP) crossing in PT-symmetric coupled waveguides. A Jordan-block-induced coalesced state constrains the post-crossing initial condition, enabling robust mode control through detuning modulation without relying on EP encircling or bypass schemes.