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1989 …2020

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2 Citations (Scopus)

Applications of Microstructures Fabricated by PBW to Electric-Micro Filters (Invited)

Nishikawa, H., Seki, Y., Furuta, Y., Uchiya, N., Nakata, T., Watanabe, T., Nakao, R., S.Uchida, S. U., Haga, J., Satoh, T., Ohkubo, T., Ishii, Y. & Kamiya, T., 2008 Jul 24, In : Book of Abstracts, 11th International Conference on Nuclear Microprobe Technology and Applications (20-25 July, 2008, Debrecen, Hungary). p. 61

Research output: Contribution to journalArticle

Applications of microstructures fabricated by proton beam writing to electric-micro filters

Furuta, Y., Nishikawa, H., Satoh, T., Ishii, Y., Kamiya, T., Nakao, R. & Uchida, S., 2009 Jun 15, In : Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 267, 12-13, p. 2285-2288 4 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Changes in the optical properties of Ge-doped silica glass during exposure to a KrF excimer laser

Miyake, Y., Nishikawa, H., Watanabe, E. & Ito, D., 1997 Dec 11, In : Journal of Non-Crystalline Solids. 222, p. 266-271 6 p.

Research output: Contribution to journalArticle

14 Citations (Scopus)

Characteristic red photoluminescence band in oxygen-deficient silica glass

Sakurai, Y., Nagasawa, K., Nishikawa, H. & Ohki, Y., 1999 Jul, In : Journal of Applied Physics. 86, 1, p. 370-373 4 p.

Research output: Contribution to journalArticle

37 Citations (Scopus)

Characterization od ClOx radicals in vacuum-ultraviolet-irradiated high-purity silica

Nishikawa, H., Nakamura, R., Ohki, Y., Nagasawa, K. & Hama, Y., 1992 Oct 1, In : The American Physical Society. 46, p. 8073-8079

Research output: Contribution to journalArticle

13 Citations (Scopus)

Characterization of ClOx radicals in vacuum-ultraviolet-irradiated high-purity silica glass

Nishikawa, H., Nakamura, R., Ohki, Y., Nagasawa, K. & Hama, Y., 1992 Jan 1, In : Physical Review B. 46, 13, p. 8073-8079 7 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Characterization of ion-implanted silica glass by vacuum ultraviolet absorption spectroscopy

Hattori, M., Nishihara, Y., Ohki, Y., Fujimaki, M., Souno, T., Nishikawa, H., Yamaguchi, T., Watanabe, E., Oikawa, M., Kamiya, T. & Arakawa, K., 2002 May, In : Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 191, 1-4, p. 362-365 4 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Characterization of ion-implanted silica glass by vacuum  ultraviolet absorption spectroscopy

Hattori, M., Nishihara, Y., Ohki, Y., Fujimaki, M., Souno, T., Nishikawa, H., Yamaguchi, T., Watanabe, E., Oikawa, M., Kamiya, T. & Arakawa, K., 2001 Sep 3, In : Radiation Effects in Insulators, Paper No. P-H.3 (Lisbon, Portugal).

Research output: Contribution to journalArticle

Controlling Spatial Curing Reactions of Epoxy Resin Systems on Ion Beam Writing

Takano, K., Satoh, T., Koka, M., Kamiya, T., Ishii, Y., Ohkubo, T., Sugimoto, M., Nishikawa, H. & Seki, S., 2010 Jul 1, In : 12th International Conference on Nuclear Microprobe Technology and Applications, Book of Abstracts. p. 173

Research output: Contribution to journalArticle

Control of refractive index of fluorinated polyimide by proton beam irradiation

Arai, Y., Ohki, Y., Saito, K. & Nishikawa, H., 2013 Jan 1, In : Japanese Journal of Applied Physics. 52, 1, 012601.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Correlation between the luminescence properties and the surface structures of submicron silica particles

Inai, S., Harao, A. & Nishikawa, H., 2007 Apr 1, In : Journal of Non-Crystalline Solids. 353, 5-7, p. 510-513 4 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
54 Citations (Scopus)

Correlation of preexisting diamagnetic defect centers with induced paramagnetic defect centers by ultraviolet or vacuum-ultraviolet photons in high-purity silica glasses

Nishikawa, H., Nakamura, R., Ohki, Y. & Hama, Y., 1993 Jan 1, In : Physical Review B. 48, 21, p. 15584-15594 11 p.

Research output: Contribution to journalArticle

54 Citations (Scopus)

Curing Reaction of SU-8 Negative-type Photoresist by MeV Ion Beam Lithography

Takano, K., Kamiya, T., Sugimoto, M., Seki, S., Satoh, T., Ishii, Y., Ohkubo, T., Koka, M. & Nishikawa, H., 2010 Jun 24, In : 27th International Conference of Photopolymer Science and Technology (ICPST-27).

Research output: Contribution to journalArticle

Decay kinetics of the 4.4-eV photoluminescence associated with the two states of oxygen-deficient type defect in amorphous SiO2

Nishikawa, H., Watanabe, E., Ito, D. & Ohki, Y., 1994 Mar 1, In : Physical Review Letters. 72, p. 2101-2104

Research output: Contribution to journalArticle

149 Citations (Scopus)

Decay kinetics of the 4.4-eV photoluminescence associated with the two states of oxygen-deficient-type defect in amorphous SiO2

Nishikawa, H., Watanabe, E., Ito, D. & Ohki, Y., 1994 Jan 1, In : Physical Review Letters. 72, 13, p. 2101-2104 4 p.

Research output: Contribution to journalArticle

149 Citations (Scopus)

Defects and optical absorption bands induced by surplus oxygen in high-purity synthetic silica

Nishikawa, H., Tohmon, R., Ohki, Y., Nagasawa, K. & Hama, Y., 1989 Dec 1, In : Journal of Applied Physics. 65, 12, p. 4672-4678 7 p.

Research output: Contribution to journalArticle

126 Citations (Scopus)

Defects in thermal oxide studied by photoluminescence spectroscopy

Nishikawa, H., Stathis, J. H. & Cartier, E., 1999 Aug 30, In : Applied Physics Letters. 75, 9, p. 1219-1221 3 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Development of embedded Mach-Zehnder optical waveguide structures in polydimethylsiloxane thin films by proton beam writing

Kada, W., Miura, K., Kato, H., Saruya, R., Kubota, A., Satoh, T., Koka, M., Ishii, Y., Kamiya, T., Nishikawa, H. & Hanaizumi, O., 2015, In : Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 348, p. 218-222 5 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Development of micromachining technology in ion microbeam system at TIARA, JAEA

Kamiya, T., Nishikawa, H., Satoh, T., Haga, J., Oikawa, M., Ishii, Y., Ohkubo, T., Uchiya, N. & Furuta, Y., 2009 Mar 1, In : Applied Radiation and Isotopes. 67, 3, p. 488-491 4 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Effect of high-temperature treatment on optical-absorption bands in amorphous SiO2

Dohguchi, N., Munekuni, S., Nishikawa, H., Ohki, Y. & Nagasawa, K., 1991 Sep 1, In : Journal of Applied Physics. 70, p. 2788-2790

Research output: Contribution to journalArticle

3 Citations (Scopus)

Effect of high-temperature treatment on optical-absorption bands in amorphous SiO2

Dohguchi, N., Munekuni, S., Nishikawa, H., Ohki, Y. & Nagasawa, K., 1991 Dec 1, In : Journal of Applied Physics. 70, 5, p. 2788-2790 3 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Effect of implanted ion species on the decay kinetics of 2.7 eV photoluminescence in thermal SiO2 films

Seol, K. S., Ohki, Y., Nishikawa, H., Takiyama, M. & Hama, Y., 1996 Dec 1, In : Journal of Applied Physics. 80, 11, p. 6444-6447 4 p.

Research output: Contribution to journalArticle

48 Citations (Scopus)

Effect of implanted ion species on the decay of 2.7 eV photoluminescence in thermal

Seol, K. S., Ohki, Y., Nishikawa, H., Takiyama, M. & Hama, Y., 1996 Dec 1, In : Journal of Applied Physics. 80, p. 6444-6447

Research output: Contribution to journalArticle

Effects of Ion Microbeam Irradiation on Silica Glass

Nishikawa, H., Fukagawa, K., Yanagi, T., Ohki, Y., Watanabe, E., Oikawa, M., Kamiya, T. & Arakawa, K., 2004 Mar 1, In : Transactions of the Materials Research Society of Japan. 29, p. 603-606

Research output: Contribution to journalArticle

Electroforming of Ni mold for imprint lithography using high-aspect-ratio PMMA microstructures fabricated by proton beam writing

Tanabe, Y., Nishikawa, H., Seki, Y., Satoh, T., Ishii, Y., Kamiya, T., Watanabe, T. & Sekiguchi, A., 2011 Aug 1, In : Microelectronic Engineering. 88, 8, p. 2145-2148 4 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Electroplating using high-aspect-ratio microstructures fabricated by proton beam writing

Seki, Y., Furuta, Y., Nishikawa, H., Watanabe, T., Nakata, T., Satoh, T., Ishii, Y. & Kamiya, T., 2009 Apr 1, In : Microelectronic Engineering. 86, 4-6, p. 945-948 4 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Energy states of Ge-doped SiO2 glass estimated through absorption and photoluminescence

Fujimaki, M., Ohki, Y. & Nishikawa, H., 1997 Feb 1, In : Journal of Applied Physics. 81, p. 1042-1046

Research output: Contribution to journalArticle

42 Citations (Scopus)

Energy states of Ge-doped SiO2 glass estimated through absorption and photoluminescence

Fujimaki, M., Ohki, Y. & Nishikawa, H., 1997 Feb 1, In : Journal of Applied Physics. 81, 3, p. 1042-1046 5 p.

Research output: Contribution to journalArticle

42 Citations (Scopus)

Enhanced photogeneration of E′ centers from neutral oxygen vacancies in the presence of hydrogen in high-purity silica glass

Nishikawa, H., Nakamura, R., Ohki, Y. & Hama, Y., 1993 Jan 1, In : Physical Review B. 48, 5, p. 2968-2973 6 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)

Enhancing proton beam writing system with auto scanning software and stage movement

Nguyen, T. P., Teshima, R., Hasegawa, T. & Nishikawa, H., 2013 Feb 1, In : Microelectronic Engineering. 102, p. 12-17 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Enhaunced photogeneration of E' centers from neutral oxygen vacancies in the presence of hydrogen in high-purity silica glass

Nishikawa, H., Nakamura, R., Ohki, Y. & Hama, Y., 1993 Aug 1, In : Physical Review B. 48, p. 2968-2973

Research output: Contribution to journalArticle

24 Citations (Scopus)

Evaluation of silica glasses implanted by high-energy ions using a uv-excited microscopy

Yamaguchi, T., Watanabe, E., Souno, T., Nishikawa, H., Hattori, M., Ohki, Y., Kamiya, T. & Arakawa, K., 2001 Sep 3, In : Abstracts of Radiation Effects in Insulators.

Research output: Contribution to journalArticle

Evaluation of silica glasses implanted by high-energy ions using a UV-excited microspectroscopy

Yamaguchi, T., Watanabe, E., Souno, T., Nishikawa, H., Hattori, M., Ohki, Y., Kamiya, T. & Arakawa, K., 2002 May, In : Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 191, 1-4, p. 371-374 4 p.

Research output: Contribution to journalArticle

Evaluation of the induced modification of a TiO2/polydimethylsiloxane composite by proton beam

Kaneko, Y., Hayashi, H. & Nishikawa, H., 2017 Jan 1, In : IEEJ Transactions on Fundamentals and Materials. 137, 11, p. 652-653 2 p.

Research output: Contribution to journalArticle

Evaluation of Three Dimensional Microstructures on Silica Glass Fabricated by Ion Microbeam

Nishikawa, H., Souno, T., Hattori, M., Nishihara, Y., Ohki, Y., Yamaguchi, T., Watanabe, E., Oikawa, M., Kamiya, T., Arakawa, K. & Fujimaki, M., 2001 Oct 1, In : JAERI-Review 2001, TIARA Annual Report 2000. p. 235-237

Research output: Contribution to journalArticle

Fabrication and evaluation of 3D-DEP devices utilized by proton beam writing

Furuta, Y., Nishikawa, H., Satoh, T., Ishii, Y., Kamiya, T., Nakao, R. & Uchida, S., 2008 Sep 1, In : 34th International Conference on Micro and Nano Engineering (15 -18 September 2008 Athens - Greece).

Research output: Contribution to journalArticle

Fabrication and evaluation of 3D-electric micro filters using proton beam writing

Furuta, Y., Nishikawa, H., Satoh, T., Ishii, Y., Kamiya, T., Nakao, R. & Uchida, S., 2009 Apr 1, In : Microelectronic Engineering. 86, 4-6, p. 1396-1400 5 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Fabrication and Evaluation of Micrometer-scale Optical Elements using Three-dimensional Irradiation Effects Localized in Micro and Nano-scale Regions

Nishikawa, H., Fukagawa, K., Yanagi, T., Nakamura, T., Ohki, Y., Watanabe, E., Oikawa, M., Arakawa, K. & Kamiya, T., 2004 Oct 4, In : TIARA Annual Report 2003, JAERI-Review 2004-025. p. 234-236

Research output: Contribution to journalArticle

Fabrication of 3-D Structures of Resist byProton Beam Writing

Furuta, Y., Uchiya, N., Nishikawa, H., Haga, J., Satoh, T., Oikawa, M., Ishii, Y. & Kamiya, T., 2007 May 29, In : The 51st International Conference on Electron, Ion, and Photon Beam Technology and Nanofabrication (USA, May 29-June 1, 2007).

Research output: Contribution to journalArticle

Fabrication of BIT thick films patterned by proton beam writing

Yamaguchi, M., Watanabe, K., Nishikawa, H. & Masuda, Y., 2017 Jul 1, In : Journal of the Korean Physical Society. 71, 2, p. 88-91 4 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)