[15p-WL2_201-1~10] 3.10 Photonic structures and phenomena | The 73rd JSAP Spring Meeting 2026

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Oral presentation3 Optics and Photonics : 3.10 Photonic structures and phenomena

[15p-WL2_201-1~10]3.10 Photonic structures and phenomena

Sun. Mar 15, 2026 1:30 PM - 4:15 PM JST
Sun. Mar 15, 2026 4:30 AM - 7:15 AM UTC

WL2_201 (West Lecture Bldg. 2)

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[15p-WL2_201-1]Singularity-enhanced sensing based on a nonlinear coupled-cavity system

〇Kosuke Takada^1,2, Ryota Katsumi^1,2, Yuto Moritake³, Takashi Yatsui^1,2 (1.TUT, 2.School of Engineering, Univ. Tokyo, 3.IIS, Univ. Tokyo)

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

[15p-WL2_201-2]2D and 3D chirality in non-Hermitian photonic crystals with symmetry control

〇Tooi Suzuki^1,2, Satoshi Suzuki^1,2, Shutaro Otsuka^1,2, Takahiro Uemura^1,2, Yuto Moritake⁴, Taiki Yoda¹, Masaaki Ono^2,3, Eiichi Kuramochi^2,3, Masaya Notomi^1,2,3 (1.Science Tokyo, 2.NTT BRL, 3.NTT Nanophotonics Center, 4.IIS, University of Tokyo)

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[15p-WL2_201-3]Realization of a photonic-crystal beam converter based on non-Hermitian/Hermitian control

Tomoki Kanesaka¹, 〇(B)Ryoji Manabe¹, Takuya Inoue¹, Masahiro Yoshida¹, Kenji Ishizaki¹, Susumu Noda^2,1 (1.Kyoto Univ., 2.KUIAS)

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)

[15p-WL2_201-4]Chiral OAM State Generation via Asymptotic Exceptional Points Emerging from Degenerate Points

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

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[15p-WL2_201-5]OAM Modes Induced by Non-Hermitian Perturbations in Photonic Crystal Coupled Cavities

〇Sotatsu Yanagimoto^1,2, Masato Takiguchi^1,2, Hisashi Sumikura^1,2, Masaya Notomi^1,2,3 (1.NTT BRL, 2.Nanophotonics Center, 3.Science Tokyo)

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[15p-WL2_201-6]Reduction of shielding loss by introducing non-radiative regions below the surface electrodes in 1-mm-diameter PCSELs : Experimental demonstration

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

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

[15p-WL2_201-7]Investigation of in-plane unidirectional radiation in one-dimensional photonic crystal waveguides loaded on a slab

〇(B)Sae Endo¹, Taiyu Okajima¹, Takahiro Ito¹, Siyuan Gao¹, Hironobu Yoshimi¹, Kenta Takata², Takahiro Uemura^3,4, Masaya Notomi^3,4,5, Satoshi Iwamoto⁶, Yasutomo Ota¹ (1.Keio Univ., 2.NTTRI PHI Lab, 3.Inst. Sci. Tokyo, 4.NTT BRL, 5.NTT NPC, 6.RCAST, Univ. of Tokyo)

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

[15p-WL2_201-8]Investigation of interband-coupling-induced in-plane unidirectional radiation in one-dimensional photonic crystal waveguides loaded on a slab

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[15p-WL2_201-9]Characterization of a 10-mm-diameter PCSEL under continuous-wave conditions (II)

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

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

[15p-WL2_201-10]Enhanced slope efficiency in CW operation of PCSELs with multi-junction active layers

〇Shumpei Katsuno¹, Masahiro Yoshida², Tomoyuki Kawase², Takuya Inoue², Menaka De Zoysa², Kotaro Okuda², Kenji Ishizaki², Susumu Noda^1,2 (1.KUIAS, 2.Fac. Eng. Kyoto Univ.)

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