374 citations · 3.2k across the 51 of their papers we have counts for
51 papers
Circularly polarized cavity-mode emission from quantum dots in a semiconductor three-dimensional chiral photonic crystal
Shun Takahashi, Yuzo Kinuta, Seiya Ito +5
We experimentally demonstrated a circularly polarized cavity mode in a GaAs-based chiral photonic crystal (PhC) containing a planar defect. Low-temperature photoluminescence measur…
Microwave hinge states in a simple-cubic-lattice photonic crystal insulator
Shun Takahashi, Yuya Ashida, Huyen Thanh Phan +4
We numerically and experimentally demonstrated a higher-order topological state in a three-dimensional (3D) photonic crystal (PhC) with a complete photonic bandgap. Two types of cu…
Valley photonic crystal waveguides fabricated with CMOS-compatible process
Takuto Yamaguchi, Hironobu Yoshimi, Miyoshi Seki +5
Valley photonic crystal (VPhC) waveguides have attracted much attention because of their ability to enable robust light propagation against sharp bends. However, their demonstratio…
Numerical Analysis of Photon Absorption of Gate-defined Quantum Dots Embedded in Asymmetric Bull's-eye Optical Cavities
Sangmin Ji, Satoshi Iwamoto
Improving the photon-spin conversion efficiency without polarization dependence is a major challenge in realizing quantum interfaces gate-defined quantum dots (QDs) for polarizatio…
Supersymmetric non-Hermitian topological interface laser
Motohiko Ezawa, Natsuko Ishida, Yasutomo Ota +1
We investigate laser emission at the interface of a topological and trivial phases with loss and gain. The system is described by a Su-Schrieffer-Heeger model with site-dependent h…
Optical Properties of Chiral Three-Dimensional Photonic Crystals made from Semiconductors
Shun Takahashi, Takeyoshi Tajiri, Yasuhiko Arakawa +2
We perform a theoretical and numerical study of the optical properties of both direct and inverse three-dimensional (3D) chiral woodpile structures, and a corresponding chiral Brag…