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Journals and Conferences
A long-wavelength GaInNAs vertical-cavity surface-emitting laser with a buried tunnel junction (BTJ) has been demonstrated in this paper. It has been shown that a combination of a GaAs-based BTJ for… (More)
Silver-sheathed BiPbSrCaCuO 2223 superconducting wires with long length and high Jc of over 10/sup 4/ A/cm/sup 2/ were developed by using the powder-in-tube method. Future possibilities to obtain… (More)
GaInNAs-VCSELs with buried tunnel junction structures are proposed and demonstrated. The maximum output powers of 4.2 mW at 25degC and 2.2 mW at 85degC are achieved with a low resistance of 65 Omega.
We are developing Bi-2223 superconducting tapes on a wide viewpoint from fundamental superconducting property to application usage. In basic characterization of superconductivity, the behavior of… (More)
The basic property of high-Tc superconducting cables (HTS cables) using Bi-2223-based Ag-sheathed multifilamentary wire (Ag-sheathed wire) have been investigated for the realization of large-scale… (More)
10 Gbps operation of BTJ GaInNAs VCSELs is achieved over temperature range of 25degC to 100degC with operation current of 5.6 mA and extinction ratio of 4.2 dB.
We investigated photoluminescence (PL) intensity change of InGaAsP/InP single quantum well after etching the upper InP by inductive coupling plasma (ICP) etching using CH/sub 4//H/sub 2//Cl/sub 2/… (More)
In 3-dimensional image analysis, the methods through converting shape information of the target object into the unified data format, which is completely independent of its shape, are widely used. The… (More)