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論文 TSV
2023
- Afshan Begum, Yuanzhao Yao, Takashi Kuroda, Yoshihiko Takeda, Naoki Ikeda, Yoshimasa Sugimoto, Takaaki Mano, Kazuaki Sakoda. Design and Observation of Topological Band Gaps and Edge Modes of SOI Photonic Crystal Slabs in the Mid-Infrared Range. Journal of the Physical Society of Japan. 92 [11] (2023) 11402 10.7566/jpsj.92.114402 Open Access
- Afshan Begum, Yuanzhao Yao, Takashi Kuroda, Yoshihiko Takeda, Naoki Ikeda, Yoshimasa Sugimoto, Takaaki Mano, Kazuaki Sakoda. Topological band gaps and edge modes materialized by symmetric silicon-on-insulator photonic crystal slabs in the mid-IR range. Physical Review A. 107 [4] (2023) 043507 10.1103/physreva.107.043507
2022
- Siti Chalimah, Yuanzhao Yao, Naoki Ikeda, Afshan Begum, Kei Kaneko, Rei Hashimoto, Tsutomu Kakuno, Shinji Saito, Takashi Kuroda, Yoshimasa Sugimoto, Kazuaki Sakoda. Mid-infrared angle-resolved spectral characteristics of photonic crystal slabs for application in surface-emitting quantum cascade lasers. Journal of Nonlinear Optical Physics & Materials. 31 [04] (2022) 10.1142/s0218863522500175 Open Access
- Afshan Begum, Yuanzhao Yao, Takashi Kuroda, Eiichiro Watanabe, Naoki Ikeda, Yoshimasa Sugimoto, Yoshihiko Takeda, Kazuaki Sakoda. Observation of Two-dimensional Isotropic Double Dirac Cones in the Electromagnetic Dispersion Relation. Journal of the Physical Society of Japan. 91 [8] (2022) 10.7566/jpsj.91.084401
書籍 TSV
会議録 TSV
口頭発表 TSV
2024
- AFSHAN BEGUM, Afshan Begum, YAO, Yuanzhao, KURODA, Takashi, TAKEDA, Yoshihiko, IKEDA, Naoki, MANO, Takaaki, SAKODA, Kazuaki. Mid-infrared topological edge modes in the symmetric and asymmetric photonic crystal slabs fabricated in SOI wafers. META 2024 (14th International Conference on Metamaterials, Photonic Crystals and Plasmonics). 2024 招待講演
- AFSHAN BEGUM, Afshan Begum, YAO, Yuanzhao, KURODA, Takashi, IKEDA, Naoki, SUGIMOTO, Yoshimasa, TAKEDA, Yoshihiko, MANO, Takaaki, SAKODA, Kazuaki. Topological edge modes in symmetric photonic crystal slabs. The 21st International Symposium on the Physics of Semiconductors and Applications (ISPSA 2024) . 2024 招待講演
- AFSHAN BEGUM, Afshan Begum, YAO, Yuanzhao, KURODA, Takashi, TAKEDA, Yoshihiko, IKEDA, Naoki, SUGIMOTO, Yoshimasa, MANO, Takaaki, SAKODA, Kazuaki. Large and Complete Topological Bandgaps with Edge modes in Symmetric SOI Photonic Crystal Slabs. The IEEE Silicon Photonics Conference 2024. 2024
2023
- AFSHAN BEGUM, Afshan Begum, YAO, Yuanzhao, KURODA, Takashi, TAKEDA, Yoshihiko, IKEDA, Naoki, SUGIMOTO, Yoshimasa, MANO, Takaaki, SAKODA, Kazuaki. Topological edge modes by high-precision nanofabrication of photonic crystals in symmetric silicon-on-insulator slabs. 78th Annual Meeting (2023), The Physical Society of Japan 日本物理学会第78回年次大会. 2023
- AFSHAN BEGUM, Afshan Begum, YAO, Yuanzhao, KURODA, Takashi, IKEDA, Naoki, SUGIMOTO, Yoshimasa, TAKEDA, Yoshihiko, MANO, Takaaki, SAKODA, Kazuaki. New photonic crystals to materialize isotropic double Dirac cones and topological edge modes. The 7th A3 Metamaterials Forum 2023. 2023 招待講演
- AFSHAN BEGUM, Afshan Begum, YAO, Yuanzhao, KURODA, Takashi, TAKEDA, Yoshihiko, IKEDA, Naoki, SUGIMOTO, Yoshimasa, MANO, Takaaki, SAKODA, Kazuaki. Observation of topological bandgaps and edge modes in Silicon-on-Insulator photonic crystal slabs. NIMS Advanced Measurement Symposium 2023. 2023
2022
- AFSHAN BEGUM, Afshan Begum, YAO, Yuanzhao, KURODA, Takashi, WATANABE, Eiichiro, SUGIMOTO, Yoshimasa, TAKEDA, Yoshihiko, SAKODA, Kazuaki. Observation of Isotropic Photonic Double Dirac Cones by High Angle- Resolution Reflection Spectroscopy at the Mid-Infrared Frequencies. 13th ISAJ Symposium, Frontiers of Materials, Life & Earth Sciences and Beyond. 2022
- AFSHAN BEGUM, Afshan Begum, YAO, Yuanzhao, KURODA, Takashi, WATANABE, Eiichiro, SUGIMOTO, Yoshimasa, TAKEDA, Yoshihiko, SAKODA, Kazuaki. Angle-resolved reflection spectra of double Dirac-cone materialized in SOI photonic crystal slabs by accidental degeneracy. 日本物理学会第77回年次大会 https://jps.or.jp/activities/meetings/annual/annual-index.php. 2022
- AFSHAN BEGUM, Afshan Begum, YAO, Yuanzhao, KURODA, Takashi, WATANABE, Eiichiro, SUGIMOTO, Yoshimasa, TAKEDA, Yoshihiko, SAKODA, Kazuaki. Observation of photonic band dispersion with high angle-resolution reflection measurements. NIMS先端計測シンポジウム2022 https://www.nims.go.jp/research/materials-analysis/events/amcp_sympo2022.html. 2022
2021
- シティ ハリマ シティ ハリマ, 姚 遠昭, 池田 直樹, アフシャン ベガム アフシャン ベガム, Kei Kaneko, Rei Hashimoto, Tsutomu Kakuno, Shinji Saito, 黒田 隆, 杉本 喜正, 迫田 和彰. Midinfrared angle-resolved reflection measurement of two-dimensional photonic crystal slabs for their application to surface emitting quantum cascade lasers. The 13th International Symposium on Modern Optics and Its Applications (ISMOA 2021) / https://ismoa.indonesianoptics.org . 2021
- AFSHAN BEGUM Afshan Begum, YAO Yuanzhao, TAKEDA Yoshihiko, SAKODA Kazuaki. Characterization of a high resistivity deposited overlay on SOI grating coupler for lateral transmission & exciting Dirac Cone in Photonic Crystal arrays. Advanced Measurement Symposium 2021. 2021
2020
- AFSHAN BEGUM Afshan Begum, YAO Yuanzhao, TAKEDA Yoshihiko, SAKODA Kazuaki. Quality factor of Chiral waveguides in topological asymmetric photonic crystal slabs. Advanced Measurement and Characterization Symposium 2020. 2020
- アフシャン ベガム, 姚 遠昭, 武田 良彦, 迫田 和彰. Quality factor of chiral waveguides in topological photonic crystal slabs. 日本物理学会 第75回年次大会. 2020
2019
- AFSHAN BEGUM, Afshan Begum, TAKEDA, Yoshihiko, YAO, Yuanzhao, SAKODA, Kazuaki. High Q topologically protected chiral waveguides in a layered system. The 4th A3 Metamaterials Forum. 2019