[9p-N221-1~14] 3.10 Photonic structures and phenomena | The 86th JSAP Autumn Meeting 2025

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Oral presentation3 Optics and Photonics : 3.10 Photonic structures and phenomena

[9p-N221-1~14]3.10 Photonic structures and phenomena

Tue. Sep 9, 2025 1:30 PM - 5:30 PM JST
Tue. Sep 9, 2025 4:30 AM - 8:30 AM UTC

N221 (Lecture Hall North)

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[9p-N221-1]Restoration of a singularity near exception points by gain saturation

〇Takahiro Uemura^1,2, Kouta Yagi^1,2, Kenta Takata^2,3, Masaya Notomi^1,2,3 (1.Science Tokyo, 2.NTT BRL, 3.NTT NPC)

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)

[9p-N221-2]Generation and control of exceptional point in Silicon Mie resonator on metal substrate

〇Naoki Oya¹, Junichi Takahara^1,2 (1.Osaka Univ., 2.Photonics Ctr.)

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[9p-N221-3]Fabrication of a vertical photonic-crystal coupler based on non-Hermitian/Hermitian control.

〇(M2)Tomoki Kanesaka¹, Takuya Inoue¹, Masahiro Yoshida¹, Susumu Noda^1,2 (1.Kyoto Univ., 2.KUIAS)

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-N221-4]Fabrication of PCSELs with in-plane distribution of non-Hermitian coupling coefficient for implementation of non-radiative region below surface electrode

〇(M2)Kotaro Okuda¹, Masahiro Yoshida¹, Shumpei Katsuno², Takuya Inoue¹, Menaka De Zoysa¹, Kenji Ishizaki¹, Susumu Noda^1,2 (1.Kyoto Univ., 2.KUIAS)

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)English Presentation

[9p-N221-5]Numerical simulation of skin effect in a non-Hermitian photonic crystal

〇ThanhHuyen Phan¹, Katsunori Wakabayashi¹ (1.Kwansei Gakuin Univ.)

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[9p-N221-6]Investigation of unidirectional radiation from stacked one-dimensional moiré photonic crystals

〇Taiyu Okajima¹, Takahiro Ito¹, Siyuan Gao¹, Satoshi Iwamoto², Yasutomo Ota¹ (1.Keio Univ., 2.RCAST)

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[9p-N221-7]Expansion of injection-locking frequency-range of photonic-crystal surface-emitting lasers (PCSELs) and dynamic control of lasing frequency

〇Ryo Kitada¹, Takuya Inoue¹, Masahiro Yoshida¹, Susumu Noda^1,2 (1.Kyoto Univ., 2.KUIAS)

3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)English Presentation

[9p-N221-8]Tight binding modeling for one-dimensional moiré bilayer photonic crystals

〇(DC)Stepan Maksimovich Trushin¹, Takahiro Ito¹, Shuma Ito¹, Satoshi Iwamoto², Yasutomo Ota¹ (1.Keio Univ., 2.RCAST, Tokyo Univ.)

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-N221-9]Evaluation of Interlayer Coupling between Split-Ring Resonator Tri-Layer Structure

〇Rinka Nakao¹, Ken Terazawa¹, Yuichi Hasegawa¹, Kazuyuki Kuzumoto¹, Ken-ichi Matsuda¹ (1.Nihon Univ.)

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)

[9p-N221-10]Fabrication and characterization of high-Q moiré photonic crystal nanocavities based on stacked nanobeams

〇Takahiro Ito¹, Akinari Fujita¹, Shuma Ito¹, Stepan Trushin¹, Jinkwan Kwoen³, Masahiro Kakuda³, Yasuhiko Arakawa³, Satoshi Iwamoto², Yasutomo Ota¹ (1.Keio Univ., 2.RCAST, Tokyo Univ., 3.NanoQuine)

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[9p-N221-11]Observation of localized cavity modes in twist-stacked moiré photonic crystals

〇(M1)Shuma Ito¹, Takahiro Ito¹, Akinari Fujita¹, Jinkwan Kwoen³, Masahiro Kakuda³, Yasuhiko Arakawa³, Satoshi Iwamoto², Yasutomo Ota¹ (1.Keio Univ., 2.RCAST, Tokyo Univ., 3.NanoQuine)

4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)

[9p-N221-12]Analysis of a large-area coherent photonic-crystal laser array

〇Takuya Inoue¹, Masahiro Yoshida¹, Kenji Ishizaki¹, Menaka De Zoysa¹, Susumu Noda^1,2 (1.Kyoto Univ., 2.KUIAS)

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

[9p-N221-13]Response characteristics of a photonic charge sensor to alpha radiation

〇Wataru Takahama^1,2, Kohtaku Suzuki³, Yasuki Okuno⁴, Ayumi Ishihara^1,2, Rikuto Ichinose¹, Yuta Kanemaru¹, Shoei Yamasaki¹, Yasushi Takahashi^1,2 (1.Osaka Met. Univ., 2.Okayama Univ., 3.The Wakasa Wan Energy Research Center, 4.RIKEN RAP)

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

[9p-N221-14]Radiation tolerance evaluation of high-Q silicon nanocavities: Absorption loss induced by proton and gamma irradiation

〇Ayumi Ishihara^1,2, Kohtaku Suzuki³, Wataru Takahama^1,2, Kosei Otsuka¹, Yasushi Takahashi² (1.Osaka Met. Univ., 2.Okayama Univ., 3.The Wakasa Wan Energy Research Center)

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