[Tu-A2-C] Photonic crystal and metasurface

11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[Tu-A2-C-02] Spatially Tailored Non-Hermitian Coupling in Photonic-Crystal Surface-Emitting Lasers for Power Scalability

〇Kotaro Okuda¹, Masahiro Yoshida¹, Shumpei Katsuno², Takuya Inoue¹, Menaka De Zoysa¹, Kenji Ishizaki¹, Susumu Noda^2,1 (1. Graduate School of Eng., Kyoto Univ. (Japan), 2. Kyoto Univ. Inst. for Advanced Study (KUIAS) (Japan))

We propose spatially tailored non-Hermitian coupling in PCSELs to resolve the pumping-extraction trade-off. We show that by rendering electrode regions non-radiative, photons are redistributed to radiative apertures while maintaining mode stability, demonstrating a scalable approach for large-area devices.