Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Koji Aoto"'
Autor:
Ziyi Zhang, Maki Kushimoto, Akira Yoshikawa, Koji Aoto, Chiaki Sasaoka, Leo J. Schowalter, Hiroshi Amano
Publikováno v:
Applied Physics Letters.
Although the pulsed operation of AlGaN-based laser diodes at UV-C wavelengths has been confirmed in the previous studies, continuous oscillation without cooling is difficult because of the high operating voltage. In this study, the temperature depend
Autor:
Maki Kushimoto, Ziyi Zhang, Akira Yoshikawa, Koji Aoto, Yoshio Honda, Chiaki Sasaoka, Leo J. Schowalter, Hiroshi Amano
Publikováno v:
Applied Physics Letters. 121:222101
Previously reported UV-C laser diode (LD) structures have been subject to design constraints owing to dark line defects at the edge of the mesa stripe after device fabrication. To address this issue, a detailed analysis revealed that the dark line de
Autor:
Ziyi Zhang, Maki Kushimoto, Akira Yoshikawa, Koji Aoto, Leo J. Schowalter, Chiaki Sasaoka, Hiroshi Amano
Publikováno v:
Applied Physics Express. 15:041007
We demonstrated continuous-wave lasing of an AlGaN-based ultraviolet laser diode, fabricated on a single-crystal AlN substrate when operating at 5 °C. The threshold current density and device series resistance were reduced by improvements to the epi
Autor:
Koji Aoto, Mitsuhiro Kurashige
Publikováno v:
The Journal of The Institute of Image Information and Television Engineers. 62:943-949
This paper analyzes success factors from the view point of entrepreneur engineering accomplished by the Hi-Vision plasma display panel (PDP) R&D consortium (abbreviated as the PDP R&D Consortium. 1994-1999) that was established as a conglomerate like
Autor:
Ryuichi Murai, Yoshinao Oe, Koji Aoto, Hideji Kawarazaki, Yoshito Tanaka, Kyohei Yoshino, Takehiro Zukawa
Publikováno v:
SID Symposium Digest of Technical Papers. 43:165-167
Plasma display panels (PDPs) with an MgCaO protective layer and a new manufacturing process were achieved, with discharge voltage decreased while productivity was maintained. The evaporation rate of MgCaO became lower with the increasing Ca content,
Publikováno v:
Japanese Journal of Applied Physics. 33:4308
Ground-state O atoms in oxygen plasma have been detected by means of two-photon laser-induced fluorescence at 226 nm. A calibration method for obtaining the absolute O atom density was established, using O atoms produced by photodissociation of molec