Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Hideki Hatano"'
Autor:
Hideki Hatano, Makoto Watanabe, Kanae Oguchi, Hisashi Yamawaki, Masahiro Kusano, Manabu Enoki
Publikováno v:
Journal of the Japan Society for Precision Engineering. 86:210-212
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f803ea2a887ebff36eee8e2f1f254d32
https://doi.org/10.2493/jjspe.86.210
https://doi.org/10.2493/jjspe.86.210
Autor:
Hideki Hatano, Manabu Enoki, Makoto Watanabe, Masahiro Kusano, Kanae Oguchi, Hisashi Yamawaki
Publikováno v:
AIP Conference Proceedings.
Ultrasonic testing is the most common method to detect defects in materials and evaluate their sizes and locations. Since piezo-electric transducers are manually handled from point to point, it takes more costs for huge products such as airplanes. La
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c8c5e8add785b6d39678fb867ce367a
https://doi.org/10.1063/1.5031634
https://doi.org/10.1063/1.5031634
Autor:
Hideki Hatano, Shunji Takekawa, Youwen Liu, Masaru Nakamura, Kenji Kitamura, S. Kumaragurubaran, S. Moorthy Babu
Publikováno v:
Optical Materials. 31:280-283
The photorefractive damage (optical damage) process in Sc-doped near-stoichiometric LiNbO3 (Sc:SLN) crystals was investigated by measuring the photocurrents in these crystals for several Sc concentrations (up to approximately 1 mol%). The photovoltai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10a216afd1bb812195cffe809bfdc83e
https://doi.org/10.1016/j.optmat.2008.04.004
https://doi.org/10.1016/j.optmat.2008.04.004
Autor:
Makoto Watanabe, Shunji Takekawa, Manabu Enoki, Hisashi Yamawaki, Hideki Hatano, Kenichi Oguchi, R. Slater
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate efficient generation of a mid-IR source at 3.2 microns using a PPSLT OPO with intracavity PPSLT difference frequency mixing (DFM) crystal. This wavelength is the best suitable for ultrasonic-generation in CFRP.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9041900f5229a2ad3951ca9e71f8496
https://doi.org/10.1364/cleo_at.2016.jth2a.4
https://doi.org/10.1364/cleo_at.2016.jth2a.4
Publikováno v:
Journal of Optics A: Pure and Applied Optics. 9:673-677
Two-colour holograms were recorded in a Tb-doped near-stoichiometric LiNbO3 crystal by use of extraordinary 778 nm beams for writing and an ordinary 350 nm beam for gating. The dependences of two-colour recording sensitivity and the saturated diffrac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec13bbac9771b466ebad1d5f008d83a6
https://doi.org/10.1088/1464-4258/9/7/018
https://doi.org/10.1088/1464-4258/9/7/018
Publikováno v:
Journal of Crystal Growth. 292:324-327
Patterned ferroelectric domains and domain selective etching of the patterned domains can provide ferroelectrics-based photonic crystals. In this paper, electron-beam has been applied to switch domains in LiNbO3 (LN) and LiTaO3 (LT) crystals. The com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bd83ef5a639072f0d056e1a728b862e
https://doi.org/10.1016/j.jcrysgro.2006.04.028
https://doi.org/10.1016/j.jcrysgro.2006.04.028
Autor:
Kenji Kitamura, Masaru Nakamura, Hideki Hatano, Ganesan Ravi, S. Ganesamoorthy, Youwen Liu, Shunji Takekawa
Publikováno v:
Ferroelectrics. 332:51-55
Pure and Mn doped single domain near stoichiometric lithium niobate crystals have been grown by top seeded solution growth from 55 mol% Li solution. A uniform segregation of Mn throughout the crystal was obtained. Doping concentration decreases the C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4559667fe21a859c4e6400ee45fc901
https://doi.org/10.1080/00150190500324675
https://doi.org/10.1080/00150190500324675
Publikováno v:
Japanese Journal of Applied Physics. 45:L399-L402
Ferroelectric crystals with patterned domain structures, such as LiTaO3, show excellent optical properties and have thus been used as materials for functional photonic devices. The effect of a resist layer on microscale domain engineering by electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33011304f202814f5af1033086562ac8
https://doi.org/10.1143/jjap.45.l399
https://doi.org/10.1143/jjap.45.l399
Publikováno v:
Journal of Applied Physics. 96:5996-6001
Near-stoichiometric LiNbO3 crystals slightly doped with Mn from melts with different compositions are grown by the top seeded solution growth method. The growth parameters such as temperature field, pulling, and rotation rates are optimized. Two-colo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b62d914b6f2ee20737c51e711deff4d6
https://doi.org/10.1063/1.1812824
https://doi.org/10.1063/1.1812824
Autor:
Hideki Hatano, Youwen Liu, Yasunori Furukawa, Kenji Kitamura, Shunji Takekawa, Masaru Nakamura
Publikováno v:
Journal of Applied Physics. 95:7637-7644
The two-color photorefractive properties in undoped as-grown near-stoichiometric lithium tantalate crystals were investigated, where a near-infrared laser and a cw ultraviolet beam were used for writing and gating, respectively. The key parameters in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3349ca5bdf62fd882834e66ed583cba
https://doi.org/10.1063/1.1737046
https://doi.org/10.1063/1.1737046