Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Junpei Murooka"'
Publikováno v:
IGARSS
The vegetation lidar mission named " MOLI: Multi-footprint Observation Lidar and Imager" has been studied by the JAXA in cooperation with forest biomass researchers. MOLI aimed to measure accurate canopy height from the international space station. T
Autor:
Daisuke Sakaizawa, Kazuhiro Asai, Junpei Murooka, Toshiyoshi Kimura, Tadashi Imai, Rei Mitsuhahi
Publikováno v:
IGARSS
Canopy height is a factor to evaluate the aboveground biomass of a forest area by remote sensing techniques. Measurements of canopy height from space progress to understand the carbon budget. JAXA has studied a space-borne vegetation lidar (the Multi
Autor:
Junpei Murooka, Daisuke Sakaizawa, Kazuhiro Asai, Rei Mitsuhahi, Toshiyoshi Kimura, Tadashi Imai
Publikováno v:
2017 IEEE International Conference on Space Optical Systems and Applications (ICSOS).
Canopy height is a factor to evaluate the above-ground biomass of a forest area by remote sensing techniques. Measurements of canopy height from space progress to understand the carbon budget. JAXA has studied a space-borne vegetation lidar (the Mult
Publikováno v:
Sensors, Systems, and Next-Generation Satellites XX.
Multi-footprint Observation LIDAR and Imager (MOLI) is a candidate mission for International Space Station – Japanese Experiment Module. The mission objective MOLI is to manage forest and to be a good calibrator for evaluation of forest biomass usi
Autor:
Toshiyoshi Kimura, Hiroshi Inada, Yasuhiro Iguchi, Masafumi Kimata, Haruyoshi Katayama, Yuta Hiroe, Michito Sakai, Ayaka Kumeta, Junpei Murooka
Publikováno v:
SPIE Proceedings.
We present the development status of Type II superlattice (T2SL) infrared detector in JAXA. Since 2009, we have started a basic research on InAs/GaSb T2SL infrared detectors. Our final goal is to realize the T2SL array detector having a cutoff wave l
Autor:
Junpei Murooka, Kenichi Machinaga, Michito Sakai, Masaki Migita, Sundararajan Balasekaran, Haruyoshi Katayama, Masafumi Kimata, Kouhei Miura, Hiroshi Inada, Yasuhiro Iguchi, Takahiko Kawahara
Publikováno v:
Infrared Technology and Applications XLII.
The cutoff wavelength of 6μm is preferable for the full usage of the atmospheric window in the mid-wavelength region. An InAs/GaSb type-II superlattice (T2SL) is the only known infrared material that has a theoretically predicted high performance an
Publikováno v:
SPIE Proceedings.
We report the result of a dark current measurement of a Type -II superlattice (T2SL) infrared focal plane array (FPA) , which consists of a 6 P cutoff T2SL detector array and the readout integration circuit (ROIC) ISC0903 of FLIR Systems. In order to
Autor:
Haruyoshi Katayama, Junpei Murooka, Masataka Naitoh, Ryota Sato, Satoshi Kawasaki, Yudai Itoh, Syota Sugano, Tomoko Takekawa, Masafumi Kimata, Mikhail Patrashin, Iwao Hosako, Yasuhiro Iguchi
Publikováno v:
SPIE Proceedings.
Autor:
Haruyoshi Katayama, Junpei Murooka, Takahiro Kitada, Mikhail Patrashin, Toshiro Isu, Iwao Hosako, Ryota Sato, Masafumi Kimata
Publikováno v:
2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR).
Space-borne infrared detectors require higher sensitivity, higher resolution, and larger formats than ground-based infrared detectors. In order to meet more demanding mission requirements, JAXA decided to position infrared detector technology as a st
Autor:
Kouhei Miura, Junpei Murooka, Haruyoshi Katayama, Yuichi Kawamura, Masafumi Kimata, Hiroshi Inada, Tomoko Takekawa, Yasuhiro Iguchi, S. Kanno
Publikováno v:
2013 International Conference on Indium Phosphide and Related Materials (IPRM).
Infrared photodetectors with InAs/GaSb type-II quantum wells on InP substrate was fabricated and evaluated. Dark current density was 0.1mA/cm2 at 112K. Quantum efficiency at 5μm was 10%. This results show that InAs/GaSb quantum wells on InP substrat