988 citations · 4.6k across the 54 of their papers we have counts for
4 papers · 2 filters
Active topological photonics
Yasutomo Ota, Kenta Takata, Tomoki Ozawa +6
Topological photonics has emerged as a novel route to engineer the flow of light. Topologically-protected photonic edge modes, which are supported at the perimeters of topologicall…
Single plasmon generation in an InAs/GaAs quantum dot in a transfer-printed plasmonic microring resonator
Akihito Tamada, Yasutomo Ota, Kazuhiro Kuruma +3
We report single plasmon generation with a self-assembled InAs/GaAs quantum dot embedded in a plasmonic microring resonator. The plasmonic cavity based on a GaAs microring is defin…
GaAs valley photonic crystal waveguide with light-emitting InAs quantum dots
Takuto Yamaguchi, Yasutomo Ota, Ryota Katsumi +5
We report a valley photonic crystal (VPhC) waveguide in a GaAs slab with InAs quantum dots (QDs) as an internal light source exploited for experimental characterization of the wave…
Spin-dependent directional emission from an asymmetry optical waveguide with an embedded quantum dot ensemble
Wenbo Lin, Yasutomo Ota, Satoshi Iwamoto +1
In this study, we examine a photonic wire waveguide embedded with an ensemble of quantum dots that directionally emits into the waveguide depending on the spin state of the ensembl…