Keishi Ohashi

上級研究員(研究院教授)

  • 1689 Citations
  • 21 h-Index
1979 …2020

Research output per year

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Research Output

2020

Tetrameric jacalin as a receptor for field effect transistor biosensor to detect secretory IgA in human sweat

Hayashi, H., Sakamoto, N., Hideshima, S., Harada, Y., Tsuna, M., Kuroiwa, S., Ohashi, K., Momma, T. & Osaka, T., 2020 Sep 15, In : Journal of Electroanalytical Chemistry. 873, 114371.

Research output: Contribution to journalArticle

2017

Review of Physiological Balance Sensing in an Unobtrusive Manner

Ohashi, K., Kuroiwa, S., Hideshima, S., Nakanishi, T. & Osaka, T., 2017 Sep 1, In : Electronics and Communications in Japan. 100, 9, p. 50-55 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2016

Industrialization trial of a biosensor technology

Ohashi, K. & Osaka, T., 2016 Jan 1, Contemporary Issues and Case Studies in Electrochemical Innovation 2. 39 ed. Electrochemical Society Inc., Vol. 75. p. 1-9 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Review of physiological balance sensing in an unobtrusive manner

Ohashi, K., Kuroiwa, S., Hideshima, S., Nakanishi, T. & Osaka, T., 2016, In : IEEJ Transactions on Sensors and Micromachines. 136, 8, p. 357-361 5 p.

Research output: Contribution to journalArticle

2014

Tag-antenna-based presence sensing using near-field traveling-wave reader antenna

Hattori, W., Ohashi, K. & Fukuda, H., 2014 Feb 3, 2014 International Conference on the Internet of Things, IOT 2014. Institute of Electrical and Electronics Engineers Inc., p. 103-107 5 p. 7030123

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)
2013

A plastic-based bolometer array sensor using carbon nanotubes for low-cost infrared imaging devices

Narita, K., Kuribayashi, R., Altintas, E., Someya, H., Tsuda, K., Ohashi, K., Tabuchi, T., Okubo, S., Imazato, M. & Komatsubara, S., 2013 Apr 26, In : Sensors and Actuators, A: Physical. 195, p. 142-147 6 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)
2012

Infrared optical and mechanical properties of ceramic coatings fabricated by aerosol deposition

Tsuda, H., Akedo, J., Hirose, S. & Ohashi, K., 2012 Dec 1, p. 406-410. 5 p.

Research output: Contribution to conferencePaper

2011

A plastic bolometer array using carbon nanotubes for low-cost infrared imaging devices

Narita, K., Sekino, S., Kuribayashi, R., Altintas, E., Someya, H., Ohashi, K., Kamijo, K., Tsuda, K., Tabuchi, T., Imazato, M. & Komatsubara, S., 2011 Dec 1, IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves. 6105083. (IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

InGaAs nano-photodiode enhanced using polarization-insensitive surface-plasmon antennas

Okamoto, D., Fujikata, J. & Ohashi, K., 2011 Dec 1, In : Japanese journal of applied physics. 50, 12, 120201.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Introduction to the issue on photonic packaging and integration technologies

García-Blanco, S. M., Bakir, M. S., Matthews, K. I., Ohashi, K. & Horst, F., 2011 May 1, In : IEEE Journal on Selected Topics in Quantum Electronics. 17, 3, p. 495-497 3 p., 5749270.

Research output: Contribution to journalEditorial

1 Citation (Scopus)

Silicon (Si) and germanium (Ge) in optical devices

Ohashi, K., 2011 Feb, Silicon-Germanium (SiGe) Nanostructures. Elsevier Ltd, p. 551-574 24 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Silicon photonics devices for optical interconnection

Nakamura, T., Fujikata, J., Ishizaka, M. & Ohashi, K., 2011, Optics InfoBase Conference Papers.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Vertical-coupling optical interface for on-chip optical interconnection

Yamada, H., Nozawa, M., Kinoshita, M. & Ohashi, K., 2011 Jan 17, In : Optics Express. 19, 2, p. 698-703 6 p.

Research output: Contribution to journalArticle

37 Citations (Scopus)
2010

ECS Transactions: Preface

Deen, M. J., Fang, Q., Jagadish, C. & Ohashi, K., 2010 Dec 1, In : ECS Transactions. 28, 14, p. iii

Research output: Contribution to journalEditorial

2009

Challenges and prospects for applications in the chips (LSI-Chip optical interconnection)

Kinoshita, M. & Ohashi, K., 2009 Aug 1, In : Journal of Japan Institute of Electronics Packaging. 12, 5, p. 452-457 6 p.

Research output: Contribution to journalArticle

Gigahertz-rate optical modulation on mach-zehnder plzt electro-optic modulators formed on silicon substrates by aerosol deposition

Shimizu, T., Nakada, M., Tsuda, H., Miyazaki, H., Akedo, J. & Ohashi, K., 2009 Dec 30, In : ieice electronics express. 6, 23, p. 1669-1675 7 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Lanthanum-modified lead zirconate titanate electro-optic modulators fabricated using aerosol deposition for LSI interconnects

Nakada, M., Shimizu, T., Miyazaki, H., Tsuda, H., Akedo, J. & Ohashi, K., 2009 Dec 1, In : Japanese journal of applied physics. 48, 9 Part 2, p. 09KA061-09KA064

Research output: Contribution to journalArticle

4 Citations (Scopus)

On-chip optical interconnect

Ohashi, K., Nishi, K., Shimizu, T., Nakada, M., Fujikata, J., Ushida, J., Toru, S., Nose, K., Mizuno, M., Yukawa, H., Kinoshita, M., Suzuki, N., Gomyo, A., Ishi, T., Okamoto, D., Furue, K., Ueno, T., Tsuchizawa, T., Watanabe, T., Yamada, K. & 2 others, Itabashi, S. I. & Akedo, J., 2009 Jul, In : Proceedings of the IEEE. 97, 7, p. 1186-1196 11 p., 5075754.

Research output: Contribution to journalArticle

90 Citations (Scopus)
2008

Low-loss silicon oxynitride waveguides and branches for the 850-nm-wavelength region

Tsuchizawa, T., Watanabe, T., Yamada, K., Fukuda, H., Itabashi, S., Fujikata, J., Gomyo, A., Ushida, J., Okamoto, D., Nishi, K. & Ohashi, K., 2008 Aug 22, In : Japanese journal of applied physics. 47, 8 PART 2, p. 6739-6743 5 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

LSI on-chip optical interconnection with Si nano-photonics

Fujikata, J., Nishi, K., Gomyo, A., Ushida, J., Ishi, T., Yukawa, H., Okamoto, D., Nakada, M., Shimizu, T., Kinoshita, M., Nose, K., Mizuno, M., Tsuchizawa, T., Watanabe, T., Yamada, K., Itabashi, S. & Ohashi, K., 2008 Feb, In : IEICE Transactions on Electronics. E91-C, 2, p. 131-137 7 p.

Research output: Contribution to journalArticle

22 Citations (Scopus)

Mn-doping effect on optical absorption of Pb(Zr,Ti)O3 films prepared by aerosol deposition

Tsuda, H., Nakada, M., Akedo, J. & Ohashi, K., 2008 Dec 1, 4th IMAPS/ACerS International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies 2008, CICMT 2008. p. 475-477 3 p. (4th IMAPS/ACerS International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies 2008, CICMT 2008).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Numerical study of near-infrared photodetectors with surface-plasmon antenna for optical communication

Okamoto, D., Fujikata, J., Nishi, K. & Ohashi, K., 2008 Apr 25, In : Japanese journal of applied physics. 47, 4 PART 2, p. 2921-2923 3 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Optical properties of Pb(Zr,Ti)O3 films prepared by aerosol deposition

Tsuda, H., Nakada, M., Akedo, J. & Ohashi, K., 2008 May 1, In : IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 55, 5, p. 975-979 5 p., 4524970.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Photodetector using surface-plasmon antenna for optical interconnect

Ohashi, K. & Fujikata, J., 2008 Dec 1, Applications of Group IV Semiconductor Nanostructures. p. 21-32 12 p. (Materials Research Society Symposium Proceedings; vol. 1145).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Waveguide-integrated Si nano-photodiode with surface-plasmon antenna and its application to on-chip optical clock distribution

Fujikata, J., Nose, K., Ushida, J., Nishi, K., Kinoshita, M., Shimizu, T., Ueno, T., Okamoto, D., Gomyo, A., Mizuno, M., Tsuchizawa, T., Watanabe, T., Yamada, K., Itabashi, S. & Ohashi, K., 2008 Feb 1, In : Applied Physics Express. 1, 2, 022001.

Research output: Contribution to journalArticle

22 Citations (Scopus)

Waveguide-integrated Si nano-photodiode with surface-plasmon antenna and its application to on-chip optical clock signal distribution

Fujikata, J., Nose, K., Ushida, J., Nishi, K., Kinoshita, M., Shimizu, T., Ueno, T., Okamoto, D., Gomyo, A., Mizuno, M., Tsuchizawa, T., Watanabe, T., Yamada, K., Itabashi, S. & Ohashi, K., 2008 Nov 21, 2008 5th International Conference on Group IV Photonics, GFP. p. 176-178 3 p. 4638136. (2008 5th International Conference on Group IV Photonics, GFP).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)
2007

Aerosol deposition on transparent electro-optic films for optical modulators

Nakada, M., Tsuda, H., Ohashi, K. & Akedo, J., 2007 Jan, In : IEICE Transactions on Electronics. E90-C, 1, p. 36-40 5 p.

Research output: Contribution to journalArticle

21 Citations (Scopus)

Application of electronic devices for aerosol deposition methods

Nakada, M., Kawakami, T., Iwanami, M. & Ohashi, K., 2007 Dec 1, In : NEC Technical Journal. 2, 1, p. 76-80 5 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

A silicon photonics approach for the nanotechnology era

Ohashi, K., Nishi, K., Shimizu, T., Nakada, M., Fujikata, J., Ushida, J., Gomyo, A., Ishi, T., Nose, K., Mizuno, M., Kinoshita, M., Suzuki, N., Okamoto, D., Yukawa, H., Tsuchizawa, T., Watanabe, T., Yamada, K., Itabashi, S. & Akedo, J., 2007 Dec 1, In : Technical Digest - International Electron Devices Meeting, IEDM. p. 787-790 4 p., 4419065.

Research output: Contribution to journalConference article

3 Citations (Scopus)

Development of nano-photodiodes with a surface plasmon antenna

Nishi, K., Fujikata, J., Ishi, T., Okamoto, D. & Ohashi, K., 2007 Dec 1, LEOS 2007 - IEEE Lasers and Electro-Optics Society Annual Meeting Conference Proceedings. p. 574-575 2 p. 4382536. (Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Dielectric characteristics of PZT films prepared by aerosol deposition in millimeter wave range

Nakada, M., Ohashi, K., Tsuda, H., Kawate, E. & Akedo, J., 2007 Dec 1, 2007 16th IEEE International Symposium on the Applications of Ferroelectrics, ISAF. p. 528-530 3 p. 4393319. (IEEE International Symposium on Applications of Ferroelectrics).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Optical characteristics of a PZT waveguide fabricated using aerosol deposition for optical modulators on LSI chips

Shimizu, T., Nakada, M., Tsuda, H., Akedo, J., Nishi, K. & Ohashi, K., 2007 Dec 1, 2007 16th IEEE International Symposium on the Applications of Ferroelectrics, ISAF. p. 831-833 3 p. 4393418. (IEEE International Symposium on Applications of Ferroelectrics).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Optical properties of Pb(Zr,Ti)O3films prepared by aerosol deposition

Tsuda, H., Nakada, M., Akedo, J. & Ohashi, K., 2007 Dec 1, 2007 16th IEEE International Symposium on the Applications of Ferroelectrics, ISAF. p. 829-830 2 p. 4393417. (IEEE International Symposium on Applications of Ferroelectrics).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

PLZT electro-optic modulators on Si substrates using aerosol deposition for on-chip optical interconnections

Shimizu, T., Nakada, M., Tsuda, H., Akedo, J., Nishi, K. & Ohashi, K., 2007 Dec 1, In : IEEE International Conference on Group IV Photonics GFP. p. 210-212 3 p., 4347718.

Research output: Contribution to journalConference article

4 Citations (Scopus)

Si nano-photodiode with a surface-plasmon antenna for sion waveguide-integrated structure

Fujikata, J., Ushida, J., Okamoto, D., Gomyo, A., Nishi, K., Tsuchizawa, T., Watanabe, T., Yamada, K., Itabashi, S. & Ohashi, K., 2007 Dec 1, LEOS 2007 - IEEE Lasers and Electro-Optics Society Annual Meeting Conference Proceedings. p. 929-930 2 p. 4382715. (Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Si nano-photonics innovate next generation network systems and LSI technologies

Nishi, K., Urino, Y. & Ohashi, K., 2007 Dec 1, In : NEC Technical Journal. 2, 1, p. 67-71 5 p.

Research output: Contribution to journalArticle

Ultra small electro-optic field probe fabricated by aerosol deposition

Iwanami, M., Nakada, M., Tsuda, H., Ohashi, K. & Akedo, J., 2007 Jan 25, In : ieice electronics express. 4, 2, p. 26-32 7 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)

Ultra small fiber-optic electric field probe fabricated by aerosol deposition

Iwanami, M., Nakada, M., Tsuda, H., Ohashi, K. & Akedo, J., 2007 Dec 1, 2007 16th IEEE International Symposium on the Applications of Ferroelectrics, ISAF. p. 834-837 4 p. 4393419. (IEEE International Symposium on Applications of Ferroelectrics).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ultra small magneto-optic field probe fabricated by aerosol deposition

Iwanami, M., Nakada, M., Tsuda, H., Ohashi, K. & Akedo, J., 2007 Sep 10, In : ieice electronics express. 4, 17, p. 542-548 7 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2006

Aerosol deposition fabrication of transparent electro-optic films for optical modulator

Nakada, M., Ohashi, K., Tsuda, H. & Akedo, J., 2006 Dec 1, IMAPS/ACerS - 2nd International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2006. p. 482-487 6 p. (IMAPS/ACerS - 2nd International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2006).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Development and applications of a Si nano-photodiode with a surface plasmon antenna

Ohashi, K., Fujikata, J., Ishi, T., Okamoto, D., Makita, K. & Nishi, K., 2006 Dec 27, Optoelectronic Materials and Devices. 63521U. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 6352 II).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Highly efficient surface-plasmon antenna and its application to Si nano-photodiode

Fujikata, J., Ishi, T., Okamoto, D., Nishi, K. & Ohashi, K., 2006 Jan 1, 19th Annual Meeting of the IEEE Lasers and Electro-Optics Society, LEOS. Institute of Electrical and Electronics Engineers Inc., p. 476-477 2 p. 4054264. (Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Optical interconnect technologies for high-speed VLSI chips using silicon nano-photonics

Ohashi, K., Fujikata, J., Nakada, M., Ishi, T., Nishi, K., Yamada, H., Fukaishi, M., Mizuno, M., Nose, K., Ogura, I., Urino, Y. & Baba, T., 2006 Dec 1, 2006 IEEE International Solid-State Circuits Conference, ISSCC - Digest of Technical Papers. p. 426+417 1696224. (Digest of Technical Papers - IEEE International Solid-State Circuits Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Silicon nano-photodiodes

Ohashi, K., Fujikata, J., Ishi, T., Nishi, K., Mizuno, M., Nose, K., Ishihara, K. & Baba, T., 2006 Dec 1, In : IEEE International Conference on Group IV Photonics GFP. p. 176-178 3 p., 1708204.

Research output: Contribution to journalConference article

1 Citation (Scopus)

Terahertz-wave near-field imaging with subwavelength resolution using surface-wave-assisted bow-tie aperture

Ishihara, K., Ohashi, K., Ikari, T., Minamide, H., Yokoyama, H., Shikata, J. I. & Ito, H., 2006 Nov 23, In : Applied Physics Letters. 89, 20, 201120.

Research output: Contribution to journalArticle

78 Citations (Scopus)
2005
15 Citations (Scopus)

Electro-optic properties of Pb(Zr1-xTix)O 3 (X = 0, 0.3, 0.6) films prepared by aerosol deposition

Nakada, M., Ohashi, K. & Akedo, J., 2005 Aug 26, In : Japanese Journal of Applied Physics, Part 2: Letters. 44, 33-36, p. L1088-L1090

Research output: Contribution to journalArticle

22 Citations (Scopus)

Excitonic molecule in a quantum dot: Photoluminescence lifetime of a single InAs GaAs quantum dot

Kono, S., Kirihara, A., Tomita, A., Nakamura, K., Fujikata, J., Ohashi, K., Saito, H. & Nishi, K., 2005 Oct 15, In : Physical Review B - Condensed Matter and Materials Physics. 72, 15, 155307.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Fabry-Perot optical modulator fabricated by aerosol deposition

Nakada, M., Ohashi, K., Tsuda, H. & Akedo, J., 2005 Dec 1, In : Proceedings of SPIE - The International Society for Optical Engineering. 6050, 605004.

Research output: Contribution to journalConference article

5 Citations (Scopus)

Large optical transmission through a single subwavelength hole associated with a sharp-apex grating

Ishi, T., Fujikata, J. & Ohashi, K., 2005 May 2, In : Japanese Journal of Applied Physics, Part 2: Letters. 44, 1-7, p. L170-L172

Research output: Contribution to journalArticle

23 Citations (Scopus)