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Autor:
Itsunari Yamada, Naoto Yamashita, K. Fukumi, Toshihiko Einishi, Mitsunori Saito, Junji Nishii
Publikováno v:
Infrared Physics & Technology. 64:13-17
Autor:
Junji Nishii, Katsumi Handa, Naoyuki Kitamura, K. Fukumi, Kohei Kadono, J. Ide, Akiyoshi Chayahara, Hiroyuki Kageyama
Publikováno v:
Transactions of the Materials Research Society of Japan. 35:769-772
Publikováno v:
Applied Surface Science. 253:4906-4910
A hydrofluoric acid (HF) bonding technique for multilayer thin films was studied to fabricate dielectric multilayer interference filters. The effects of pressure, HF concentration and annealing treatment on bonding strength were studied. Bonding stre
Autor:
Kazuo Watanabe, Iwao Mogi, Kohki Takahashi, Junji Nishii, Naoyuki Kitamura, K. Fukumi, Satoshi Awaji
Publikováno v:
Journal of Physics: Conference Series. 51:462-465
Flow behaviour has been observed in binary alkali phosphate glass melts (xR2O-2P2O5: R = Li, K ; x = 1, 3) under vertical magnetic field up to 3 T. The flow velocity of thermal convection decreased gradually to about one-third of the velocity at 0 T
Autor:
Atsushi Kinomura, Hiroyuki Kageyama, Naoyuki Kitamura, Akiyoshi Chayahara, Y. Mokuno, K. Fukumi, Kohei Kadono, Junji Nishii, Yuji Horino
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 206:353-356
Halogen ions (Cl, Br and I) and copper ions have been implanted in silica glass at the same dose and at energies of the order of MeV, sequentially. The coordination structure of implanted copper atoms has been studied by X-ray absorption fine structu
Publikováno v:
Journal of Physics: Condensed Matter. 14:11615-11621
In situ investigations into the P/T field of C60 fullerene were performed using energy-dispersive x-ray diffraction techniques. Isobars were obtained at 11 and 9 GPa accompanied by isotherms at 750 and 800 K with pressure reaching 13 GPa. The P/T his
Autor:
K Fukumi, Yoji Kawamoto, N Kitamura, K. Miyauchi, Y Nishihata, M. Shojiya, Yoshinori Katayama, J Qiu
Publikováno v:
Solid State Communications. 124:189-193
A GeS 2 glass was compressed up to 8 GPa at room temperature, heated up to 270 °C under 8 GPa and then decompressed to ambient pressure at room temperature, using a large volume high-pressure apparatus. The local structural-changes around Ge were ex
Publikováno v:
Journal of Physics and Chemistry of Solids. 63:691-694
The effect on transmittance and reflectance in the vacuum ultraviolet (VUV) region by doping alkali fluorides (LiF, NaF and KF) has been investigated in a ternary fluoroaluminate (18BaF 2 –37CaF 2 –45AlF 3 ) glass. The absorption edge of the glas
Autor:
Toshihiko Einishi, Naoto Yamashita, Mitsunori Saito, Junji Nishii, K. Fukumi, Itsunari Yamada
Publikováno v:
Infrared Physics & Technology. 81:339