Atsushi Kuwano
Hitachi
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Publication
Featured researches published by Atsushi Kuwano.
Applied Optics | 1995
Takeo Tomiyama; Itsuo Watanabe; Atsushi Kuwano; Masanobu Habiro; Nobuaki Takane; Mitsuo Yamada
A novel rewritable optical disk that uses an optical recording material made of naphthalocyanine and polythiophene as the recording layer is described. In this system the complex refractive index of the recording material changes reversibly, depending on the aggregation states of naphthalocyanine induced by a conformation change of the polythiophene matrix. After recording, the imaginary part of the refractive index of the recording material increases to three times that of the unrecorded part, at a wavelength of 790 nm at which a semiconductor laser emits light. The fabricated polythiophene naphthalocyanine optical disk shows a high reflectivity of 58% and a large readout modulation amplitude (I(11)/I(top)) of 0.63. It is confirmed that the polythiophene/naphthalocyanine optical disk can be played back on conventional compact-disc players even after ten cycles of rewriting.
Archive | 1998
Itsuo Watanabe; Tohru Fujinawa; Motohiro Arifuku; Houko Kanazawa; Atsushi Kuwano
Archive | 1994
Naoki Fukutomi; Hidehiro Nakamura; Hajime Nakayama; Yoshiaki Tsubomatsu; Masanori Nakamura; Kouichi Kaitou; Atsushi Kuwano; Itsuo Watanabe; Masahiko Itabashi
Archive | 2007
Itsuo Watanabe; Tohru Fujinawa; Motohiro Arifuku; Houko Kanazawa; Atsushi Kuwano
Archive | 1997
Atsushi Kuwano; Shinsuke Hagiwara
Archive | 2012
Tomoo Nishiyama; Atsushi Kuwano; Toshiaki Shirasaka; Naoki Hara; Kensuke Yoshihara; Hideyuki Katagi
Archive | 1998
Naoki Fukutomi; Hidehiro Nakamura; Hajime Nakayama; Yoshiaki Tsubomatsu; Masanori Nakamura; Kouichi Kaitou; Atsushi Kuwano; Itsuo Watanabe; Masahiko Itabashi
Archive | 1992
Itsuo Watanabe; Atsushi Kuwano; Jun Taketatsu; Nobuaki Takane; Mitsuo Yamada; Seiji Tai
Archive | 2006
Michitoshi Arata; Atsushi Kuwano; Megumi Matsui; 恵 松井; 敦司 桑野; 道俊 荒田
Archive | 2008
Michitoshi Arata; Atsushi Kuwano; 敦司 桑野; 道俊 荒田