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Search Results: Records 1-20 displayed on this page of 31

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Oral presentation

Frequency tunable etalon with optical shutter for terahertz laser pulses

Tsubouchi, Masaaki; Kumada, Takayuki

no journal, , 

Arbitrary pulse shaping in THz region is required for the application of THz laser pulses. In this study, we developed the etalon operated in the THz region as one of the basic technologies for the pulse shaping. The etalon is composed by the thin silicon plate and the glass coated by the indium tin oxide. After the THz pulse is introduced in the etalon, the silicon is irradiated by UV light pulse to generate plasma sheet on the silicon surface. The plasma sheet operates as the optical switch which traps the THz pulse in the etalon. We realized the THz pulse train with extremely high efficiency by employing our etalon with optical switch.

Oral presentation

Thermal annealing effects below 773 K for nitride films on Al(111) formed by kinetic energy induced N$$_{2}$$ adsorption

Jinno, Muneaki*; Teraoka, Yuden; Takaoka, Tsuyoshi*; Okada, Ryuta; Iwai, Yutaro*; Yoshigoe, Akitaka; Komeda, Tadahiro*

no journal, , 

no abstracts in English

Oral presentation

Ge$$^3$$$$^+$$ components of oxidized Ge(111)-c(2$$times$$8) surface depending on translational kinetic energy of O$$_2$$

Okada, Ryuta; Yoshigoe, Akitaka; Teraoka, Yuden; Jinno, Muneaki*; Yamada, Yoichi*; Sasaki, Masahiro*

no journal, , 

no abstracts in English

Oral presentation

Initial sticking probability on Ge(100)-2$$times$$1 depending on translational kinetic energy of O$$_2$$

Yoshigoe, Akitaka; Okada, Ryuta; Teraoka, Yuden; Jinno, Muneaki*; Yamada, Yoichi*; Sasaki, Masahiro*

no journal, , 

no abstracts in English

Oral presentation

Influence of powder particle size on scintillation intensity of B$$_{2}$$O$$_{3}$$/ZnS(Ag) type neutron imaging detector

Yasuda, Ryo; Katagiri, Masaki*; Nakamura, Tatsuya; Sakai, Takuro; Nojima, Takehiro; Iikura, Hiroshi

no journal, , 

no abstracts in English

Oral presentation

Soft X-ray laser generation and nanomodification of metal surface

Nishikino, Masaharu; Ishino, Masahiko; Faenov, A.*; Tanaka, Momoko; Pikuz, T.; Starikov, S. V.*; Vladimir, V.*; Norman, G.*; Fortov, V.*; Skobelev, I.*; et al.

no journal, , 

no abstracts in English

Oral presentation

Fabrication of 3D microstructure at teflon by MeV and keV ion beam

Kitamura, Akane; Sato, Takahiro; Koka, Masashi; Kamiya, Tomihiro; Kobayashi, Tomohiro*

no journal, , 

no abstracts in English

Oral presentation

Fabrication of microstructure at Teflon surface by ion microbeam

Kitamura, Akane; Sato, Takahiro; Koka, Masashi; Kamiya, Tomihiro; Kobayashi, Tomohiro*

no journal, , 

no abstracts in English

Oral presentation

Analytical study on optical guide property of solid scintillation neutron detectors

Ozu, Akira; Kureta, Masatoshi; Seya, Michio; Haruyama, Mitsuo; Takase, Misao; Kurata, Noritaka; Soyama, Kazuhiko; Nakamura, Tatsuya

no journal, , 

no abstracts in English

Oral presentation

Investigation of substrate surface treatment conditions to fabricate highly crystalline $$beta$$-FeSi$$_2$$ thin film

Hamamoto, Satoshi*; Yamaguchi, Kenji; Hojo, Kiichi

no journal, , 

no abstracts in English

Oral presentation

Fabrication of the ordered array of optical centers in diamond by low energy ion implantation

Komatsubara, Akira*; Teraji, Tokuyuki*; Hori, Masahiro*; Kumagai, Kuninori*; Tamura, Shuto*; Oshima, Takeshi; Onoda, Shinobu; Yamamoto, Takashi; Muller, C.*; Naydenov, B.*; et al.

no journal, , 

no abstracts in English

Oral presentation

Change of scattering mechanisms of SiC by electron irradiation

Murata, Koji*; Matsuura, Hideharu*; Onoda, Shinobu; Oshima, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Estimation method for radiation resistance of multi-junction solar cells using I-V characteristics of subcells

Nakamura, Tetsuya*; Imaizumi, Mitsuru*; Sato, Shinichiro; Oshima, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Space application of III-V compound multi-junction high efficiency solar cells

Imaizumi, Mitsuru*; Takamoto, Tatsuya*; Oshima, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Detection of deep levels in low-doped n-type 4H-SiC by using alpha particles

Iwamoto, Naoya; Johnson, B. C.; Oshima, Takeshi; Hoshino, Norihiro*; Tsuchida, Hidekazu*

no journal, , 

no abstracts in English

Oral presentation

Graphene on 3C-SiC(111)/Si(111) off-axis

Haramoto, Naoki*; Inomata, Shuya*; Sambonsuge, Shota*; Yoshigoe, Akitaka; Teraoka, Yuden; Fukidome, Hirokazu*; Suemitsu, Maki*

no journal, , 

no abstracts in English

Oral presentation

Development of ion-induced luminescence spectroscopy and imaging technique for analysis of aerosol particles using ion microbeam probe

Kada, Wataru; Yokoyama, Akihito; Koka, Masashi; Sato, Takahiro; Kamiya, Tomihiro

no journal, , 

no abstracts in English

Oral presentation

Constructing autonomous distributed infrastructure systems; Super energy saving ecosystems using power electronics based on widegap semiconductors

Ito, Hisayoshi; Oshima, Takeshi; Okumura, Hajime*; Harima, Hiroshi*; Kishida, Shunji*; Hiramoto, Toshiro*; Hirakawa, Kazuhiko*

no journal, , 

In the presentation, we propose the construction of the super energy saving ecosystems using power electronics based on widegap semiconductors, as autonomous distributed infrastructure systems which work even in emergency cases like East Japan great earthquake disaster. This proposal consists of (1) R&D of advanced power electronics using widegap semiconductors like silicon carbide (SiC) and (2) the construction of super low loss energy control and communication systems based on such advanced power electronics. By realizing such super energy saving ecosystems, advanced eco-cities resisting a disaster are expected to be built. The proposed ecosystems are also quite effective for preventing global warming and promoting industrial development.

Oral presentation

Unusual charge collection from 4H-SiC Schottky barrier diode

Makino, Takahiro; Deki, Manato; Iwamoto, Naoya; Onoda, Shinobu; Hoshino, Norihiro*; Tsuchida, Hidekazu*; Oshima, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Analysis of temperature dependence in thermal oxidation process on high-index Si surfaces, 2

Abe, Sosuke*; Ono, Shinya*; Kanemura, Rui*; Yoshigoe, Akitaka; Teraoka, Yuden; Ogata, Shoichi*; Yasuda, Tetsuji*; Tanaka, Masatoshi*

no journal, , 

no abstracts in English

31 (Records 1-20 displayed on this page)