Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Yasuhito Uchiyama"'
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2245f430362cc89a01c1f6005ad27ccd
https://doi.org/10.1016/j.infrared.2005.02.021
https://doi.org/10.1016/j.infrared.2005.02.021
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2866e288cf5e442d262cd59c82e41695
https://doi.org/10.1016/j.infrared.2009.05.023
https://doi.org/10.1016/j.infrared.2009.05.023
Autor:
Ryo Suzuki, Michiya Kibe, Hironori Nishino, Shinji Miyazaki, Yusuke Matsukura, Toshio Fujii, Yasuhito Uchiyama, Mi. Doshida, H. Yamashita, Mitsuhiro Nagashima
Publikováno v:
SPIE Proceedings.
Recently, quantum dot infrared photodetectors (QDIP) have been intensively investigated because they can be fabricated by conventional matured GaAs processing. QDIP can detect normal incident light in contrast to quantum well infrared photodetectors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27fb6896807288ebba48dfa5c0babe50
https://doi.org/10.1117/12.822892
https://doi.org/10.1117/12.822892
Autor:
Hironori Nishino, Yasuhito Uchiyama, Nobuyuki Kajihara, Toshio Fujii, Ozaki Kazuo, Yusuke Matsukura
Publikováno v:
SPIE Proceedings.
A novel quantum-well infrared photodetector (QWIP) with peak responsivity in the mid-wavelength (MW) range was characterized, and the performance of a focal-plane array (FPA) based on the MW-QWIP was investigated. InGaAs/AlGaAs quantum wells were use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e0c49d1408b636d4bac3608bb5626ec
https://doi.org/10.1117/12.603350
https://doi.org/10.1117/12.603350
Publikováno v:
SPIE Proceedings.
We investigated the mechanism of the photocurrent transmission in mid-wavelength quantum-well infrared photodetectors that were made using InGaAs/AlGaAs quantum wells so that their peak absorption would be at a wavelength near 5 μm. Analyzing the bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5d764a77775a61267303e682f0dc4c4
https://doi.org/10.1117/12.542964
https://doi.org/10.1117/12.542964
Autor:
Toshio Fujii, Yasuhito Uchiyama, Yusuke Matsukura, Hironori Nishino, Tetsuya Miyatake, Kousaku Yamamoto
Publikováno v:
SPIE Proceedings.
We investigated the behavior of the dark current (Id) in quantum well infrared photodetectors (QWIPs) in which the barrier layers were selectively doped instead of the well layers. Because the selective doping bends the conduction band (CB) edge in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::296fa6b416d12fcef60c6080ef526d4a
https://doi.org/10.1117/12.478844
https://doi.org/10.1117/12.478844
Autor:
Yasuhito Uchiyama, Minoru Doshida, Hironori Nishino, Yusuke Matsukura, Michiya Kibe, Mitsuhiro Nagashima
Publikováno v:
Journal of Applied Physics. 107:054504
We propose a quantum dot infrared photodetector (QDIP) having distinct sensitivity to mutually orthogonal in-plane polarized infrared radiation, and applicable to practical infrared (IR) imaging applications. Our QDIP has either an InAs/AlAs/AlGaAs o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78a9a657fe8225ed923d0f0d8e8d06bb
https://doi.org/10.1063/1.3327002
https://doi.org/10.1063/1.3327002