374 citations · 3.2k across the 51 of their papers we have counts for
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Topologically-protected single-photon sources with topological slow light photonic crystal waveguides
Kazuhiro Kuruma, Hironobu Yoshimi, Yasutomo Ota +4
Slow light waveguides are advantageous for implementing high-performance single-photon sources required for scalable operation of integrated quantum photonic circuits (IQPCs), thou…
Transmission properties of microwaves at an optical Weyl point in a three-dimensional chiral photonic crystal
S. Takahashi, S. Tamaki, K. Yamashita +3
Microwave transmission measurements were performed for a three-dimensional (3D) layer-by-layer chiral photonic crystal (PhC), whose photonic band structure contains 3D singular poi…
Unidirectional output from a quantum-dot single-photon source hybrid integrated on silicon
Ryota Katsumi, Yasutomo Ota, Takeyoshi Tajiri +4
We report a quantum-dot single-photon source (QD SPS) hybrid integrated on a silicon waveguide embedding a photonic crystal mirror, which reflects photons and enables efficient uni…
A large-scale single-mode array laser based on a topological edge mode
Natsuko Ishida, Yasutomo Ota, Wenbo Lin +3
Topological lasers have been intensively investigated as a strong candidate for robust single-mode lasers. A typical topological laser employs a single-mode topological edge state,…
Chiral modes near exceptional points in symmetry broken H1 photonic crystal cavities
C. F. Fong, Y. Ota, Y. Arakawa +2
The H1 photonic crystal cavity supports two degenerate dipole modes of orthogonal linear polarization which could give rise to circularly polarized fields when driven with a /$2…
Coupling of a Single Tin-vacancy Center to a Photonic Crystal Cavity in Diamond
Kazuhiro Kuruma, Benjamin Pingault, Cleaven Chia +5
We demonstrate optical coupling between a single tin-vacancy (SnV) center in diamond and a free-standing photonic crystal nanobeam cavity. The cavities are fabricated using quasi-i…