374 citations · 425 across the 3 of their papers we have counts for
6 papers
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…
Photonic crystal nanocavity based on a topological corner state
Yasutomo Ota, Feng Liu, Ryota Katsumi +4
Topological phonics has emerged as a novel approach to engineer the flow of light and provides unprecedented means for developing diverse photonic elements, including robust optica…
High-Q nanocavities in semiconductor-based three-dimensional photonic crystals
S. Takahashi, T. Tajiri, K. Watanabe +3
We experimentally demonstrated high quality factors (Q-factors) of nanocavities in three-dimensional photonic crystals by increasing the in-plane area of the structure. Entire stru…
Topological photonic crystal nanocavity laser
Yasutomo Ota, Ryota Katsumi, Katsuyuki Watanabe +2
Topological edge states exist at the interfaces between two topologically-distinct materials. The presence and number of such modes are deterministically predicted from the bulk-ba…
Transfer-printed quantum-dot nanolasers on a silicon photonic circuit
A. Osada, Y. Ota, R. Katsumi +3
Quantum-dot (QD) nanolasers integrated on a silicon photonic circuit are demonstrated for the first time. QD nanolasers based on one-dimensional photonic crystal nanocavities conta…