GaAs valley photonic crystal waveguide with light-emitting InAs quantum dots

Takuto Yamaguchi; Yasutomo Ota; Ryota Katsumi; Katsuyuki Watanabe; Satomi Ishida; Alto Osada; Yasuhiko Arakawa; Satoshi Iwamoto

doi:10.7567/1882-0786/ab1cc5

GaAs valley photonic crystal waveguide with light-emitting InAs quantum dots

Takuto Yamaguchi, Yasutomo Ota, Ryota Katsumi, Katsuyuki Watanabe, Satomi Ishida, Alto Osada, Yasuhiko Arakawa, Satoshi Iwamoto

研究成果: Article › 査読

32 被引用数 (Scopus)

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We report a valley photonic crystal (VPhC) waveguide in a GaAs slab with InAs quantum dots (QDs) as an internal light source exploited for the experimental characterization of the waveguide. A topological interface state formed at the interface between two topologically-distinct VPhCs is used as the waveguide mode. We demonstrate robust propagation for the near-infrared light emitted from the QDs, even with the presence of sharp bends, due to the topological protection of the guided mode. Our work will be of importance for developing robust photonic integrated circuits with small footprints, as well as for exploring active semiconductor topological photonics.

本文言語	English
論文番号	062005
ジャーナル	Applied Physics Express
巻	12
号	6
DOI	https://doi.org/10.7567/1882-0786/ab1cc5
出版ステータス	Published - 2019 6月 1
外部発表	はい

ASJC Scopus subject areas

工学（全般）
物理学および天文学（全般）

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10.7567/1882-0786/ab1cc5

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title = "GaAs valley photonic crystal waveguide with light-emitting InAs quantum dots",

abstract = "We report a valley photonic crystal (VPhC) waveguide in a GaAs slab with InAs quantum dots (QDs) as an internal light source exploited for the experimental characterization of the waveguide. A topological interface state formed at the interface between two topologically-distinct VPhCs is used as the waveguide mode. We demonstrate robust propagation for the near-infrared light emitted from the QDs, even with the presence of sharp bends, due to the topological protection of the guided mode. Our work will be of importance for developing robust photonic integrated circuits with small footprints, as well as for exploring active semiconductor topological photonics.",

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T1 - GaAs valley photonic crystal waveguide with light-emitting InAs quantum dots

AU - Yamaguchi, Takuto

AU - Ota, Yasutomo

AU - Katsumi, Ryota

AU - Watanabe, Katsuyuki

AU - Ishida, Satomi

AU - Osada, Alto

AU - Arakawa, Yasuhiko

AU - Iwamoto, Satoshi

PY - 2019/6/1

Y1 - 2019/6/1

N2 - We report a valley photonic crystal (VPhC) waveguide in a GaAs slab with InAs quantum dots (QDs) as an internal light source exploited for the experimental characterization of the waveguide. A topological interface state formed at the interface between two topologically-distinct VPhCs is used as the waveguide mode. We demonstrate robust propagation for the near-infrared light emitted from the QDs, even with the presence of sharp bends, due to the topological protection of the guided mode. Our work will be of importance for developing robust photonic integrated circuits with small footprints, as well as for exploring active semiconductor topological photonics.

AB - We report a valley photonic crystal (VPhC) waveguide in a GaAs slab with InAs quantum dots (QDs) as an internal light source exploited for the experimental characterization of the waveguide. A topological interface state formed at the interface between two topologically-distinct VPhCs is used as the waveguide mode. We demonstrate robust propagation for the near-infrared light emitted from the QDs, even with the presence of sharp bends, due to the topological protection of the guided mode. Our work will be of importance for developing robust photonic integrated circuits with small footprints, as well as for exploring active semiconductor topological photonics.

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GaAs valley photonic crystal waveguide with light-emitting InAs quantum dots

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