Hoshiteru Nozawa

Publications (2)7.17 Total impact

• Article: Optical properties and Faraday effect of ceramic terbium gallium garnet for a room temperature Faraday rotator.

  Hidetsugu Yoshida, Koji Tsubakimoto, Yasushi Fujimoto, Katsuhiro Mikami, Hisanori Fujita, Noriaki Miyanaga, Hoshiteru Nozawa, Hideki Yagi, Takagimi Yanagitani, Yutaka Nagata, Hiroo Kinoshita
  [show abstract] [hide abstract]
  ABSTRACT: The optical properties, Faraday effect and Verdet constant of ceramic terbium gallium garnet (TGG) have been measured at 1064 nm, and were found to be similar to those of single crystal TGG at room temperature. Observed optical characteristics, laser induced bulk-damage threshold and optical scattering properties of ceramic TGG were compared with those of single crystal TGG. Ceramic TGG is a promising Faraday material for high-average-power YAG lasers, Yb fiber lasers and high-peak power glass lasers for inertial fusion energy drivers.
  Optics Express 08/2011; 19(16):15181-7. · 3.59 Impact Factor
• Article: Cryogenic temperature characteristics of Verdet constant on terbium gallium garnet ceramics.

  Ryo Yasuhara, Shigeki Tokita, Junji Kawanaka, Toshiyuki Kawashima, Hirofumi Kan, Hideki Yagi, Hoshiteru Nozawa, Takagimi Yanagitani, Yasushi Fujimoto, Hidetsugu Yoshida, Masahiro Nakatsuka
  [show abstract] [hide abstract]
  ABSTRACT: As the first demonstration of Faraday effect in a TGG ceramics, its Verdet constant at 1053 nm is evaluated to be 36.4 rad/Tm at room temperature which is same as that of the single crystal. In addition, the temperature dependence of Verdet constant is obtained experimentally. At liquid helium temperature, it is 87 times greater than that at room temperature.
  Optics Express 10/2007; 15(18):11255-61. · 3.59 Impact Factor