253 citations · 775 across the 26 of their papers we have counts for
26 papers
Observation of Terahertz Spin Hall Conductivity Spectrum in GaAs with Optical Spin Injection
Tomohiro Fujimoto, Takayuki Kurihara, Yuta Murotani +7
We report the first observation of the spin Hall conductivity spectrum in GaAs at room temperature. Our terahertz polarimetry with a precision of several rads resolves the Farad…
Shear-Strain Controlled High-Harmonic Generation in Graphene
Tomohiro Tamaya, Hidefumi Akiyama, Takeo Kato
We propose a novel method for controlling the high-harmonic generation (HHG) with a high dynamic range in single-layer graphene. We find that, by utilizing shear strain, a signific…
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…
High-harmonic generation in GaAs beyond the perturbative regime
Peiyu Xia, Tomohiro Tamaya, Changsu Kim +6
We experimentally study the field-intensity dependence of high-harmonic generation in bulk gallium arsenide in reflection geometry. We find the oscillatory behavior at high fields…
In-situ wavelength tuning of quantum-dot single-photon sources integrated on a CMOS silicon chip
Ryota Katsumi, Yasutomo Ota, Alto Osada +6
Silicon quantum photonics provides a promising pathway to realize large-scale quantum photonic integrated circuits (QPICs) by exploiting the power of complementary-metal-oxide-semi…
"Visible" 5d orbital states in a pleochroic oxychloride
Daigorou Hirai, Takeshi Yajima, Daisuke Nishio-Hamane +7
Transition metal compounds sometimes exhibit beautiful colors. We report here on a new oxychloride Ca3ReO5Cl2 which shows unusually distinct pleochroism; that is, the material exhi…