Thermalization effect on radiative decay of excitons in quantum wires

Hidefumi Akiyama, S. Koshiba, Takao Someya, +6

Physical Review Letters

Formation of GaAs ridge quantum wire structures by molecular beam epitaxy on patterned substrates

S. Koshiba, H. Noge, Hidefumi Akiyama, +8

Applied Physics Letters

SemiconductorsSharp RidgeElectrical EngineeringSemiconductor TechnologyEngineering +12

Surface diffusion processes in molecular beam epitaxial growth of GaAs and AlAs as studied on GaAs (001)-(111)<i>B</i> facet structures

S. Koshiba, Y. Nakamura, Masahiro Tsuchiya, +5

Journal of Applied Physics

SemiconductorsMaterials ScienceSemiconductor TechnologyGa FluxEngineering +9

Enhanced crystallographic selectivity in molecular beam epitaxial growth of GaAs on mesas and formation of (001)-(111)<i>B</i> facet structures for edge quantum wires

Y. Nakamura, S. Koshiba, Masahiro Tsuchiya, +2

Applied Physics Letters

Stimulated emission in ridge quantum wire laser structures measured with optical pumping and microscopic imaging methods

Shinichi Watanabe, S. Koshiba, Masahiro Yoshita, +3

Applied Physics Letters

Optical PumpingPhotonicsQuantum ScienceOptical TransitionEngineering +10

Large conductance anisotropy in a novel two-dimensional electron system grown on vicinal (111)<i>B</i> GaAs with multiatomic steps

Y. Nakamura, S. Koshiba, H. Sakaki

Applied Physics Letters

Aperiodic StepsWide-bandgap SemiconductorEngineeringOptoelectronic DevicesSemiconductors +16

Modulation of one-dimensional electron density in <i>n</i>-AlGaAs/GaAs edge quantum wire transistor

Y. Nakamura, Masahiro Tsuchiya, S. Koshiba, +2

Applied Physics Letters

SemiconductorsQuantum ScienceElectrical EngineeringElectronic DevicesElectron Density +12

Solid-immersion photoluminescence microscopy of carrier diffusion and drift in facet-growth GaAs quantum wells

Masahiro Yoshita, Motoyoshi Baba, S. Koshiba, +2

Applied Physics Letters

Solid-immersion Photoluminescence MicroscopyPhotonicsQuantization EnergyEngineeringPhotoluminescence +8

MBE growth of GaAs nanometer-scale ridge quantum wire structures and their structural and optical characterizations

S. Koshiba, H. Noge, Hiroshi Ichinose, +7

Solid-State Electronics

Ii-vi SemiconductorEngineeringPhysicsOptical CharacterizationsMbe Growth +6

Formation of multi-atomic steps and novel heterojunctions on vicinal (1 1 1)B substrates by MBE and anisotropic transport of 2D electrons

Yuiga Nakamura, S. Koshiba, H. Sakaki

Journal of Crystal Growth

Transition Metal ChalcogenidesAnisotropic TransportEngineeringPhysicsTopological Heterostructures +6