Tadashi Takeda

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Japanese Journal of Applied Physics | 1996

Satoru Nakao; Takaaki Suzuki; Tadashi Takeda; Yoshio Hayashi; Ken Ishikawa; Hideo Takezoe; Atsuo Fukuda

We demonstrated a new type of grating polarizing beam-splitter (GPBS), which is made of an oriented thin film of polydiacetylene (PDA) and has the advantages of light weight and easy fabrication. The extinction ratios of the 2.5-µm-thick element were -8.7 dB and -7.4 dB for the 0th-order and the 1st-order diffraction beams, respectively. The problems that must be solved prior to practical use are discussed.

Archive | 2009

Hisahiro Ishihara; Toshiyuki Karasawa; Shinji Minamisawa; Yuichi Takei; Tadashi Takeda; Katsushige Yanagisawa; Akihiro Nagata; Kiyoshi Miyazaki

Archive | 2009

Toshifumi Tsuruta; 鶴田稔史; Kiyoshi Miyazaki; 宮崎清史; Tadashi Takeda; 武田正; Hisahiro Ishihara; 石原久寛; Katsushige Yanagisawa; 柳澤克重; Toshiyuki Karasawa; 唐沢敏行; Yuichi Takei; 武居勇一; Akihiro Nagata; 長田章弘; Shinji Minamisawa; 南澤伸司

Archive | 2010

Toshifumi Tsuruta; Kiyoshi Miyazaki; Tadashi Takeda; Hisahiro Ishihara; Katsushige Yanagisawa; Toshiyuki Karasawa; Yuichi Takei; Akihiro Nagata; Shinji Minamisawa

Archive | 2010

Shinji Minamisawa; 南澤伸司; Toshiyuki Karasawa; 唐沢敏行; Yuichi Takei; 武居勇一; Tadashi Takeda; 武田正; Akihiro Nagata; 長田章弘; Hisahiro Ishihara; 石原久寛; Kiyoshi Miyazaki; 宮崎清史; Katsushige Yanagisawa; 柳澤克重

Archive | 1996

Tadashi Takeda; Yoshio Hayashi; Hideo Takezoe; Ken Ishikawa

Archive | 1995

Tadashi Takeda; Yoshio Hayashi; Hideo Takezoe; Ken Ishikawa

Archive | 2010

Hisahiro Ishihara; Toshiyuki Karasawa; Shinji Minamizawa; Seishi Miyazaki; Akihiro Osada; Tadashi Takeda; Yuichi Takei; Katsushige Yanagisawa; 伸司南澤; 敏行唐沢; 清史宮崎; 克重柳澤; 勇一武居; 正武田; 久寛石原; 章弘長田

Archive | 2009