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

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

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.

Original language	English
Article number	062005
Journal	Applied Physics Express
Volume	12
Issue number	6
DOIs	https://doi.org/10.7567/1882-0786/ab1cc5
Publication status	Published - 2019 Jun 1
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.7567/1882-0786/ab1cc5

Cite this

@article{acb34bcd852545e7a66e06a56fe9a50a,

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.",

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

note = "Publisher Copyright: {\textcopyright} 2019 The Japan Society of Applied Physics.",

year = "2019",

month = jun,

day = "1",

doi = "10.7567/1882-0786/ab1cc5",

language = "English",

volume = "12",

journal = "Applied Physics Express",

issn = "1882-0778",

publisher = "Japan Society of Applied Physics",

number = "6",

}

TY - JOUR

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.

UR - http://www.scopus.com/inward/record.url?scp=85069443881&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85069443881&partnerID=8YFLogxK

U2 - 10.7567/1882-0786/ab1cc5

DO - 10.7567/1882-0786/ab1cc5

M3 - Article

AN - SCOPUS:85069443881

SN - 1882-0778

VL - 12

JO - Applied Physics Express

JF - Applied Physics Express

IS - 6

M1 - 062005

ER -

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

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this