Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Yusuke Matsukura"'
Autor:
Koji Tsunoda, Yusuke Matsukura, Ryo Suzuki, Junichi Kon, Shigekazu Okumura, Shuichi Tomabechi, Hironori Nishino
Publikováno v:
Journal of Crystal Growth. 477:243-248
The surface morphology of GaSb was investigated by changing growth conditions such as thermal oxide desorption temperature, growth temperature, and growth step by solid source molecular beam epitaxy. At high temperature growth, the pits caused by the
Publikováno v:
Journal of Solid State Chemistry. 211:162-169
We compared reactivity between CO2 and Li2CuO2 with that between CO2 and Li4SiO4 by using XRD, SEM observation, and thermogravimetry in order to study fundamentally a potential of Li2CuO2 oxide for application to solid CO2 absorbents. The CO2 absorpt
Publikováno v:
Infrared Technology and Applications XLII.
In the development of InAs/GaSb Type-II superlattice (T2SL) infrared photodetectors, the surface leakage current at the mesa sidewall must be suppressed. To achieve this requirement, both the surface treatment and the passivation layer are key techno
Publikováno v:
Journal of the Ceramic Society of Japan. 116:1283-1288
Particle size dependence of CO2 absorption rate of powdered Li4SiO4 with four kinds of particle sizes was studied by SEM observation, particle size distribution measurement, and thermogravimetry. Average particle sizes of the powdered single phase Li
Autor:
Yusuke Matsukura
Publikováno v:
SPIE Proceedings.
We first derive a formula that can successfully describe the device nonlinearity between the IR incidence corresponding to the blackbody temperature T and the pixel output V for infrared detectors such as QWIPs or QDIPs, which have a peak (not cutoff
Publikováno v:
Infrared Physics & Technology. 47:164-168
We developed a Monte-Carlo simulation to calculate the characteristics of QDIP devices. To implement QDs into our Monte-Carlo simulation, QDs are expressed as a sort of “scattering centers”. Infrared absorption is implemented by the change of the
Autor:
Tetsuya Miyatake, Toshio Fujii, Prafula Masalkar, Yoshihiro Miyamoto, Hironori Nishino, Yusuke Matsukura
Publikováno v:
Infrared Physics & Technology. 45:1-7
We investigated the performance of a 640 × 480 pixel quantum well infrared photodetectors focal plane array (QWIP-FPA) when an elliptical-curve random grating was used as the optical coupler for the QWIP. The design of the elliptical random coupler
Publikováno v:
Infrared Physics & Technology. 52:257-259
We studied the responsivity–dark current relationship of quantum dot infrared photodetector (QDIP) devices published by several research groups. We found that the dark currents ( I d s) of these devices increased in proportion to the square of resp
Publikováno v:
Journal of Crystal Growth. 203:464-472
We demonstrated for the first time the selective epitaxial growth of n-GaAs using dimethylgalliumchloride (DMGaCl) by a multi-wafer LP-MOVPE system. We achieved complete selective epitaxy for the GaAs at a growth rate of more than 0.4 μm/h with an e
Publikováno v:
Journal of Applied Physics. 82:617-621
The CF4/O2 or CF4 plasma induced damage in Si-implanted n-type GaAs crystals has been investigated by using Hall measurement and secondary ion mass spectrometry (SIMS) analysis. We found that sheet resistance degraded after plasma exposure and postan