Tomohiko Furuhata

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We demonstrated the elongation of the photoluminescence (PL) wavelength of (Ga)InAs quantum dots (QDs) using a highly strained GaInAsSb cover layer for the first time. The effect of the GaInAsSb cover layer on the optical properties of (Ga)InAs self-organized QDs was investigated for various indium (In) compositions in dots and cover layers. The emission(More)
Lasing characteristics of MBE grown GaInAs/AlGaAs single QW lasers with double barrier tunnel injection structures are investigated. The I-L characteristics are strongly affected by the tunnel injection structure. A high characteristic temperature of 164K is obtained.
This paper analyzes the energy, exergy, emissions, and heat exchanger sizes of a novel gas-turbine/steam-turbine combined cycle based on the chemical gas turbine system (ChGT). The system consists of a series arrangement of a fuel-rich and fuel-lean combustor with their gas turbines, recuperators, and a steam bottoming cycle. The fuel-rich combustion in the(More)
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