Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Toshiaki Asahi"'
Autor:
Naoki Takano, Kenji Sato, Hiroki Aoki, Mitsuru Shinagawa, Toshiaki Asahi, Atsushi Miki, Hironori Imamura
Publikováno v:
GCCE
The millimeter wave characteristics of a transmission line with a copper sintered body were estimated through electromagnetic field simulations. The sintered body was modeled based on the existence area of closed pores. The deterioration of the trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a56a8fa5845e0beb6aa0b5f37cc1445
https://doi.org/10.1109/gcce50665.2020.9292040
https://doi.org/10.1109/gcce50665.2020.9292040
Autor:
Hironori Imamura, Atsushi Miki, Shokei Numamoto, Kenji Sato, Mitsuru Shinagawa, Toshiaki Asahi, Naoki Takano
Publikováno v:
TENCON
This study describes the influence of structural deviation in a microstrip patch antenna on millimeter wave performance through the use of an electromagnetic field simulator. We divided the structural deviation into two deviations: uneven and tapered
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1531c1ae402c1a6b186cda09b94fb5a
https://doi.org/10.1109/tencon.2019.8929550
https://doi.org/10.1109/tencon.2019.8929550
Publikováno v:
Journal of Electronic Materials. 46:2248-2253
ZnTe thin films on sapphire substrate with nanofaceted structure have been studied. The nanofaceted structure of the m-plane (10-10) sapphire was obtained by heating the substrate at above 1100°C in air, and the r-plane (10-12) and S-plane (1-101) w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3da7eff3dcf3265d6ebebca1a9b3327b
https://doi.org/10.1007/s11664-016-5165-2
https://doi.org/10.1007/s11664-016-5165-2
Autor:
Fukino Kazami, Sotaro Yamashita, Wei Che Sun, Takayuki Aiba, Yuki Hashimoto, Toshiaki Asahi, Kosuke Taguri, Takeru Kizu, Shun Ozaki, Shota Hattori, Taizo Nakasu, Masakazu Kobayashi
Publikováno v:
Journal of Electronic Materials. 45:4742-4746
Zinc telluride (ZnTe) epilayers were grown on S-plane (\(10\bar{1}1\)) sapphire substrates by molecular beam epitaxy, and the epitaxial relationships between the two were compared with data previously obtained for layers grown on c-plane (0001), m-pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca5dca43ae9a8e7a3c36b3e44b624005
https://doi.org/10.1007/s11664-016-4700-5
https://doi.org/10.1007/s11664-016-4700-5
Autor:
Sotaro Yamashita, Masakazu Kobayashi, Toshiaki Asahi, Taizo Nakasu, Wei Che Sun, Takayuki Aiba, Shota Hattori, Fukino Kazami, Takeru Kizu, Kosuke Taguri
Publikováno v:
physica status solidi (b). 253:635-639
ZnMgTe/ZnTe waveguide is a high potential electro-optical device. Thick and high Mg composition cladding layers are required for high optical performance waveguides. However, adding Mg would increase the lattice mismatch between ZnMgTe and ZnTe which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f9de651a0fa3c750533dfc248ea1410
https://doi.org/10.1002/pssb.201552587
https://doi.org/10.1002/pssb.201552587
Autor:
Takeru Kizu, Wei Che Sun, Takayuki Aiba, Toshiaki Asahi, Fukino Kazami, Shota Hattori, Kosuke Taguri, Sotaro Yamashita, Yuki Hashimoto, Taizo Nakasu, Shun Ozaki, Masakazu Kobayashi
Publikováno v:
Journal of Electronic Materials. 45:2127-2132
ZnTe/sapphire heterostructures were focused, and ZnTe thin films were prepared on highly mismatched sapphire substrates by molecular beam epitaxy. A sapphire substrate possessing an atomically-smooth step-terrace structure was used to improve the cry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c54bed6a1351295ebb0e14e700127da
https://doi.org/10.1007/s11664-016-4386-8
https://doi.org/10.1007/s11664-016-4386-8
Autor:
Jing Wang, Masakazu Kobayashi, Yuki Hashimoto, Fukino Kazami, Toshiaki Asahi, Takeru Kizu, Wei Che Sun, Shota Hattori, Taizo Nakasu
Publikováno v:
MRS Advances. 1:1721-1727
ZnMgTe(Cladding)/ZnTe(Core)/ZnMgTe(Cladding) thin film waveguide had been grown by molecular beam epitaxy (MBE) and presented a great potential to be a high performance Electro-optical (EO) modulator. For a low propagation loss ZnMgTe/ZnTe waveguide,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::597c6276cd538d84ccd47a6d9e02c7bf
https://doi.org/10.1557/adv.2016.133
https://doi.org/10.1557/adv.2016.133
Autor:
Taizo Nakasu, Fukino Kazami, Masakazu Kobayashi, Shota Hattori, Wei Che Sun, Toshiaki Asahi, Takeru Kizu, Yuki Hashimoto
Publikováno v:
physica status solidi c. 13:435-438
ZnTe epilayers were grown on R -plane () and S -plane () sapphire substrates by molecular beam epitaxy, and the crystal orientation and the optical property were studied. The crystal orientation of ZnTe layers on sapphire substrates was studied using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c910f37f4485f569ea49721c3286ba3
https://doi.org/10.1002/pssc.201510265
https://doi.org/10.1002/pssc.201510265
Publikováno v:
Journal of Crystal Growth. 468:635-637
Zinc telluride layers were grown on highly-lattice-mismatched sapphire substrates by molecular beam epitaxy, and their crystallographic properties were studied by means of X-ray diffraction pole figures. The crystal quality of the ZnTe thin film was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6c1b85ce93e7e4f6939a24a12260406
https://doi.org/10.1016/j.jcrysgro.2016.11.035
https://doi.org/10.1016/j.jcrysgro.2016.11.035
Autor:
Kenji Sato, Toshiaki Asahi, Mitsuru Shinagawa, Shokei Numamoto, Masashi Ohno, Koichiro Tanaka, Hironori Imamura, Toshiyuki Ono
Publikováno v:
TENCON
This paper describes the low-frequency shielding effectiveness (SE) of a multi-layered device using Cu and PET film. The SE of the multi-layered device is estimated by an electromagnetic field simulator and by experiment. The pulse waveform method is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e5fab7d6f730fce7a3e99f034bb47bc
https://doi.org/10.1109/tencon.2018.8650381
https://doi.org/10.1109/tencon.2018.8650381