253 citations · 775 across the 26 of their papers we have counts for
5 papers · 1 filter
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…
Metal-to-insulator transition in anatase TiO2 thin films induced by growth rate modulation
T. Tachikawa, M. Minohara, Y. Nakanishi +5
We demonstrate control of the carrier density of single phase anatase TiO2 thin films by nearly two orders of magnitude by modulating the growth kinetics during pulsed laser deposi…
Imaging of emission patterns in a T-shaped quantum wire laser
Yasushi Takahashi, Shinichi Watanabe, Masahiro Yoshita +5
Spatially and spectrally resolved microscopic images of spontaneous and stimulated emissions are imaged at the mirror facets of a GaAs T-shaped quantum wire laser with high uniform…
Polarization-dependent photoluminescence-excitation spectra of one-dimensional exciton and continuum states in T-shaped quantum wires
Hirotake Itoh, Yuhei Hayamizu, Masahiro Yoshita +5
We measured polarization-dependent photoluminescence-excitation spectra of highly uniform T-shaped quantum wires at 5 K. We attribute one peak to the 1D-exciton ground state and th…
Lasing from a single quantum wire
Yuhei Hayamizu, Masahiro Yoshita, Shinichi Watanabe +3
A laser with an active volume consisting of only a single quantum wire in the 1-dimensional (1-D) ground state is demonstrated. The single wire is formed quantum-mechanically at th…