Papers by Author: Kazuaki Kurihara

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Authors: Kazuaki Kurihara, A. Enomoto, Hikaru Kobayashi, T. Shidara, A. Shirakawa, K. Nakahara
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Authors: Keisuke Satoh, Akio Sugama, Masatoshi Ishii, Masao Kondo, Kazuaki Kurihara
Abstract: Lanthanum-modified lead zirconate titanate and lead zirconate titanate epitaxial films with (100) and (111) orientations were grown respectively on (100) and (111) niobium, lending conductivity to strontium titanate through chemical solution deposition. This study investigated changes in the ordinary and extraordinary refractive index no and ne induced in these films by an electric field using the prism-coupling method. In the (100) epitaxial PZT 30/70 film, anisotropic electro-optic effects arise from the Pockels effect. The isotropic electro-optic effect, which is no = ne , was achieved on (100) epitaxial PLZT 8/65/35 and PZT 70/30 films.
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Authors: Masaharu Hida, Kazuaki Kurihara
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Authors: M. Hida, Masao Kondo, Kazuaki Kurihara
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Authors: Tomoaki Yamada, Naoki Wakiya, Kazuo Shinozaki, Nobuyasu Mizutani, Masao Kondo, Kazuaki Kurihara
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Authors: Tsuyoshi Aoki, Masao Kondo, Mineharu Tsukada, Kazuaki Kurihara, Makoto Kuwabara
Abstract: Two-dimensional Pb0.865La0.09Zr0.65Ti0.35O3 (PLZT) photonic crystals with hexagonal arrays of air holes on (001) Pt-sputtered magnesium oxide substrates were fabricated using a sol-gel process with resist molds. The PLZT photonic crystals have a thickness of 200 nm, and the period of hexagonal array and the radius of air holes were 400 or 450 nm and 135 or 165 nm, respectively. The PLZT photonic crystals were primarily orientated along the c-axis. The strain hysteresis loop of the photonic crystals suggested that the photonic crystals are ferroelectric. Several peaks within range of wavelength between 500 nm and 1000 nm appeared in the optical reflection spectra from the cleaved facet of the photonic crystals. The peaks have polarization dependence and the frequency bands of the each peak were close to that of photonic band gaps (PBGs) expected by the calculations.
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Authors: Tsuyoshi Aoki, Kazuaki Kurihara, Makoto Kuwabara
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Authors: Osamu Matsuura, Masaki Kurasawa, Shigeyoshi Umemiya, Kenji Maruyama, Kazuaki Kurihara
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