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Research Reports

Presentations

2010

  • Kroug, M., Kuroiwa, K., Fujii, Y., Miyachi, A., Gonzalez, A., Noguchi, T., Uzawa, Y., Makise, K., Wang, Z., Shan, W., and Shi, S., 2010,
    "SIS Mixers for the 790 - 950 GHz Band" The 11th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Nagoya, Japan

  • Gonzalez, A., Uzawa, Y. Fujii, Y., Kaneko, K., Kroug, M., Kuroiwa, K., Miyachi, A., 2010,
    "Beam Performance Characterization of ALMA Band 10 Cartridge" The 11th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Nagoya, Japan

  • Kuroiwa, K., Makise, K., Kojima, T., Fujii, Y. , Kroug, M., Miyachi, A., Uzawa, Y., Wang, Z., and Ogawa, H., 2010,
    "Performance of Superconducting NbTiN Waveguide for Terahertz SIS Mixer" The 11th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Nagoya, Japan

  • Fujii, Y., Uzawa, Y., Kaneko, K., Kroug, M., Gonzalez, A., Kuroiwa, K., Miyachi, A., Ogawa, H., Makise, K., Wang, Z., Wang, M., and Shan, W., 2010,
    "Development of the 787-950 GHz ALMA Band 10 Cartridge" The 11th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Nagoya, Japan

  • Uzawa, Y., Fujii, Y., Kaneko, K., Kroug, M., Gonzalez, A., Kojima, T., Kuroiwa, K., Miyachi, A., Makise, K., Wang, Z., and Shan, W., 2010,
    "Development of the 787-950 GHz ALMA Band 10 Cartridge" 2010 Asia-Pacific Radio Science Conference , Toyama, Japan

  • Makise, K., Takeda, M., Terai, H., Uzawa, Y., and Wang, Z., 2010,
    "Characterization of NbTiN thin films deposited on various substrates" Applied Superconductivity Conference 2010, Washington DC, USA

  • Uzawa, Y., Fujii, Y., Kaneko, K., Kroug, M., Kojima, T., Kuroiwa, K., Miyachi, A., Makise, K., Wang, Z., and Shan, W., 2010,
    "Performance of the ALMA Band 10 SIS Receiver Prototype Model" Applied Superconductivity Conference 2010, Washington DC, USA

  • Kuroiwa, K., Makise, K., Kojima, T., Fujii, Y. , Kroug, M., Miyachi, A., Uzawa, Y., Wang, Z., and Ogawa, H., 2010,
    "Development of Superconducting NbTiN Waveguides for the Terahertz SIS Mixers" Applied Superconductivity Conference 2010, Washington DC, USA

  • Noguchi, T., 2010
    "Imaginary Part of the Superconducting Gap Energy and Its Influence on Low-Temperature Devices" The 11th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Nagoya, Japan

  • Inoue, H., Noguchi, T., Kohno, K., 2010,
    "SIS junction using as a microwave noise source" Applied Super-conductivity Conference, Washington DC, USA

  • Noguchi, T., Suzuki, T., Tamura, T., 2010,
    "Subgap tunneling current at low temperature in Nb/Al-AlN/Nb SIS junctions " Applied Super-conductivity Conference, Washington DC,USA

  • M. Saito, 2010,
    "ALMA for Interstellar Matter" Workshop on Interstellar Matter, Sapporo, Japan

  • Okumura, S. K., Chikada, Y., Kamazaki, K., Okuda, T., Kurono, Y., and Iguchi, S., 2010,
    "Atacama Compact Array Correlator for Atacama Large Millimeter/submillimeter Array" 2010 Asia-Pacific Radio Science Conference, Toyama, Japan

  • M. Saito, J. Inatani, K. Nakanishi, T. Naoi, M. Yamada, H. Saito, B. Ikenoue. Y. Kato, K.-I. Morita, N. Mizuno, and S. Iguchi., 2010,
    "Atacama Compact Array Antennas" 2010 Asia-Pacific Radio Science Conference, Toyama, Japan

  • Hitoshi Kiuchi, 2010,
    "Photonic Millimeter-wave generation and transmission techniques for the ALMA high-frequency Radio Interferometer", Symposium on Innovative Lightwave, Millimeter-Wave and THz Technologies for Future Sustainable Network, UCSD

2009

  • Kengo Tachihara, 2009, "East-Asian preparatory activities for ALMA on star formation," ALMA and ELTs: A Deeper, Finer View of the Universe", ESO/Garching
  • Takeshi Nakazato, 2009, "Current Status of Single-dish Data Analysis Software for ALMA", Astronomical Data Analysis Software and Systems XIX, Sapporo, Japan

  • Kanako Sugimoto, 2009, "Single dish observation simulator in CASA", Astronomical Data Analysis Software and Systems XIX, Sapporo, Japan

  • Kengo Tachihara, 2009, "Small scale structure of cloud surface perturbed by nearby HII region", Millimeter and Submillimeter Astronomy at High Angular Resolution, Taipei

2008

  • H.Kiuchi, T.Kawanishi, M.Yamada, T.Sakamoto, M.Tsuchiya, J.Amagai and M.Izutsu, 2008, "Photonic Millimeter-wave generation and transmission system applicable to the ALMA Radio Telescopes," URSI: International Union of Radio Science, Chicago, USA
  • Hasegawa, T, 2008, "ALMA Construction Status and Operation Planning," 10th Asian-Pacific Regional IAU Meeting, Kunming, China
  • Kengo Tachihara, 2008, "ALMA status," ASTE Science Workshop "Sub-mm spectroscopy with ASTE in the ALMA era", Mitaka, Japan
  • M. Naruse, Y. Sekimoto, M. Kamikura, M. Sugimoto, T. Ito, N. Satou, K. Kumagai, Y. Iizuka and Y. Fujimoto, 2008, "Near-Field Beam Pattern Measurement of ALMA Band 8 (385 - 500GHz) First Cartridge," 3rd European Conference on Antenna and Propagation, Berlin
  • Y. Sekimoto1, Y. Iizuka1, N. Satou1, T. Ito1, K. Kumgai1, Y. Niizeki, Y. Fujimoto, M. Kamikura1, M. Naruse1, and W. L. Shan2, 2008, "Evaluation of ALMA Band 8 (385-500 GHz) preproduction Cartridge #1," East Asia Submillimeter Receiver Workshop, Taipei, Taiwan
  • Asayama, S., Kawashima, S., Iwashita, H., Inata, M., Obuchi, Y., Suzuki, T., Wada, T, 2008, "Design and Development of ALMA Band 4 Cartridge Receiver," 19th International Symposium on Space Terahertz Technology, SRON, Groningen, Netherlands
  • Y. Sekimoto, Y. Iizuka, N. Satou, T. Ito, K. Kumagai, M. Kamikura, M. Naruse, and W. L. Shan, 2008, "Development of ALMA Band 8 (385-500 GHz) Cartridge," 19th International Symposium on Space Terahertz Technology, Groningen, Netherland
  • M. Naruse, M. Kamikura, Y. Sekimoto, T. Ito, M. Sugimoto, Y. Iizuka, N. Satou, and K. Kumagai, 2008, "Near-field beam and cross-polarization pattern measurements of ALMA band 8 cartridges," 19th International Symposium on Space Terahertz Technology, Groningen, Netherland
  • M. Kamikura, M. Naruse, S. Asayama, N. Satou, W. Shan, Y. Sekimoto, 2008, "Development of a 385-500 GHz Orthomode Transducer (OMT)," 19th International Symposium on Space Terahertz Technology, Groningen, Netherland
  • S. V. Shitov, J. Inatani, W.-L. Shan, M. Takeda, A. V. Uvarov, Y. Uzawa, A. N. Vystavkin, 2008, "Measurement of emissivity of the ALMA antenna panel at 840 GHz using NbN-based heterodyne SIS receiver," International Symposium on Space THz Technology 2008, Groningen, The Netherlands
  • W. -L. Shan, M. Takeda, K. Takafumi, Y. Uzawa, S. -C. Shi, Z. Wang, 2008, "Design and Performance of Waveguide Mixers with All NbN tunnel junctions on MgO substrates," International Symposium on Space THz Technology 2008, Groningen, The Netherlands
  • T. Kojima, Y. Uzawa, W.-L. Shan, Y. Fujii, M. Takeda, M. Kroug, S. Shitov, and H. Ogawa, 2008, "Characterization of waveguide components for the ALMA band 10," International Symposium on Space THz Technology 2008, Groningen, The Netherlands
  • A. Endo, T. Noguchi, M. Kroug, S. V. Shitov, W. Shan, T. Tamura,T. Kojima, Y. Uzawa, T. Sakai, H. Inoue, K. Muraoka, K. Kohno, 2008, "A novel THz SIS mixer with a NbTiN-groundplane and SIS micro-trilayers directly grown on a quartz substrate," International Symposium on Space THz Technology 2008, Groningen, The Netherlands
  • M.Candotti, Y.Uzawa, S.V.Shitov, Y.Fujii, K.?Kaneko, 2008, "Tolerance analysis of the ALMA band 10 front-end optics," International Symposium on Space THz Technology 2008, Groningen, The Netherlands
  • M.A.Bukovski, S.V.Shitov, A.?V.?Uvarov, O.?V.?Koryukin, Y.?Uzawa, 2008, "SIS mixers for ALMA band-10: comparison of epitaxial and hybrid circuits," International Symposium on Space THz Technology 2008, Groningen, The Netherlands
  • Inoue H., Noguchi, T, 2008, "Noise source using SIS junction," The 9th Workshop on SMW Rx Technologies in Eastern Asia, Taipei, Taiwan
  • Noguchi, T, 2008, "Effect of complex superconducting gap energies on SIS tunneling current," The 9th Workshop on SMW Rx Technologies in Eastern Asia, Taipei, Taiwan
  • M. Candotti, Y. Uzawa, Y. Fujii, S. Shitov, K. Kaneko, 2008, "Electromagnetic characterization of direct machined corrugated horn for the ALMA band 10 receiver," 2008 International Symposium on Antenna and Propagation (ISAP’08), Taipei, Taiwan
  • A. Endo, T. Noguchi, M. Kroug, S. V. Shitov, W. Shan, T. Tamura, T. Kojima, Y. Uzawa, T. Sakai, H. Inoue, K. Kohno, 2008, "A novel THz SIS mixer with a NbTiN-ground plane and SIS micro-trilayers directly grown on a quartz substrate," Applied Superconductivity Conference, Chicago, USA
  • M. Kroug, A. Endo, T. Tamura, T. Noguchi, Y. Uzawa, M. Takeda, Z. Wang, W. Shan, 2008, "SIS Mixer Fabrication for ALMA Band10," Applied Superconductivity Conference, Chicago, USA
  • T. Kojima, M. Kroug, Y. Fujii, Y. Uzawa, M. Takeda, Z. Wang, S.-C. Shi, W. -L. Shan, 2008, "Performance of terahertz waveguide SIS mixers employing epitaxial NbN films and Nb junctions," Applied Superconductivity Conference, Chicago, USA
  • M. Takeda, W. L. Shan, T. Kojima, Y. Uzawa, S. Saito, Y. Fujii, J. Li, S. C. Shi, Z. Wang, 2008, "Mixing properties of NbN-based SIS mixers with NbTiN wirings," Applied Superconductivity Conference, Chicago, USA
  • Y. Uzawa, T. Kojima, M. Kroug, Y. Fujii, M. Candotti, W. L. Shan, M. Takeda, K. Kaneko, S. Shitov, M. J. Wang, 2008, "Measurement system of ALMA/Band10 cartridge," 33rd International Conference on Infrared, Millimeter, and Terahertz Waves, California, USA
  • Y. Fujii, et al., 2008, "Measurement system of ALMA/Band10 cartridge," The 9th Workshop on SMW Rx Technologies in Eastern Asia, Taipei, Taiwan
  • M. Kroug, T. Kojima, Y. Fujii, Y. Uzawa, A. Endo, T. Tamura, Y. Kiuchi, T. Noguchi, M. Takeda, Z. Wang, W. Shan, 2008, "SIS mixers for ALMA band-10(787-950 GHz)," The 9th Workshop on SMW Rx Technologies in Eastern Asia, Taipei, Taiwan
  • T. Kojima, M. Kroug, M. Takeda, W.-L. Shan, Y. Fujii, Y. Uzawa, Z. Wang, S.-C. Shi, 2008, "Performance of terahertz waveguide SIS mixers employing epitaxial NbN films and Nb junctions," The 9th Workshop on SMW Rx Technologies in Eastern Asia, Taipei, Taiwan
  • M. Takeda, T. Kojima, W.-L. Shan, S. Nakayama, A. Saito, M. Kroug, Y. Uzawa, Z. Wang, 2008, "Current status of NbN-based SIS mixers for ALMA Band 10 development," The 9th Workshop on SMW Rx Technologies in Eastern Asia, Taipei, Taiwan
  • M. Candotti, et al., 2008, "Status of the ALMA band 10 front-end optics development," The 9th Workshop on SMW Rx Technologies in Eastern Asia, Taipei, Taiwan

2007

  • Endo, A., Inoue, H., Asayama, S., Noguchi, T., Kroug, M., Tamura, T. 2007, "Fabrication of aluminium nitride barrier SIS mixer devices using plasma diluted by noble gases," 8th European Conference on Applied Superconductivity, Brussels, Belgium
  • Uzawa, Y., Sugimoto, M., Kimura, K, Nohara, R., anabe, T., Ogawa, H., Fujii, Y., Shan, W.-L., Kaneko, K, Kroug, M., and Shitov, S. 2007, "Near-Field beam measurements of corrugated horns for ALMA band 10," 18th International Symposium on Space Terahertz Technology, Caltech
  • Uzawa, Y. 2007, "Status of band 10 development," 7th Workshop on Submm-Wave Receiver Technologies in Eastern Asia, Osaka Prefecture University
  • Takeda, M., Shoji, A., Saito, S., Shan, W., Uzawa, Y., Li, J., Shi, S.-C., Wang, Z. 2007, "Measurement of complex dielectric constant of MgO substrate in the THz region," 7th Workshop on Submm-Wave Receiver Technologies in Eastern Asia, Osaka Prefecture University
  • Koryukin, V., Shitov. S. V., Bukovski, M. A.,?Uvarov, A. V.,?Uzawa, Y., Noguchi, T., Wang, Z., Kroug. M. 2007, "Balanced waveguide mixer for ALMA band 10: HFSS simulation," 7th Workshop on Submm-Wave Receiver Technologies in Eastern Asia, Osaka Prefecture University
  • Asayama, S., Kawashima, S., Iwashita, H., Takahashi, T., Inata, M., Obuchi, Y., Suzuki, T., Wada, T. 2007, "Progress and Status of the ALMA Band 4 Cartridge Receiver," 7th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Osaka, Japan
  • A. Endo. 2007, "Logarithmic growth of AlNx barriers in Nb/Al-AlNx/Nb SIS tunnel junctions," 18th International Symposium on Space Terahertz Technology, Pasadena, US
  • A. Endo. 2007, "Novel Techniques for Controlling the RnA of RF Plasma Nitridized AlN Barriers for SIS Tunnel Junctions," 7th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Osaka, Japan
  • T. Tamura. 2007, "Fabrication of submicron SIS junction using i-line stepper," 7th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Osaka, Japan
  • T. Noguchi. 2007, "Status of SIS device development at NAOJ," 7th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Osaka, Japan
  • Kiuchi, H., Kawanishi, T., Yamada, M., Sakamoto, T., Tsuchiya, M., Amagai, J., and Izutsu, M. 2007, "Photonic millimeter-wave generation and distribution system applicable to the ALMA radio telescopes," PIERS 2008 (Progress in Electromagnetics research symposium), Hangzhou, China
  • Kiuchi, H., Kawanishi, T., Yamada, M., Sakamoto, T., Tsuchiya, M., Amagai, J., and Izutsu, M. 2007, "Photonic Millimeter-wave generation Developments for the ALMA Radio Telescope," 20th annual meeting of the IEEE Lasers and Electro-Optics society, Fukuoka
  • Tatematsu, K. 2007, "East Asia ALMA Regional Center," ALMA Community Meeting, Garching, Germany
  • Yamada Masako. 2007"3D Molecular Line Transfer Study of Extragalactic ISM towards ALMA," Durham Radiative Transfer Workshop 2007, Durham大
  • Yamada Masako. 2007"Miilimeter and Submillimeter Line Diagnostics of AGN Molecular Torus : 3D Radiative Transfer Approach," 3rd ALMA-JT Science Workshop, 台湾中央大学

2006

  • Wang, Z., Takeda, M., Uzawa, Y. 2006,"Development of low-noise SIS mixers with NbN technique for ALMA Band 10," IRMMW-Thz 2006, Shanghai (China)
  • Wang, Z., Takeda, M., Terai, T., Uzawa, Y. 2006,"High-quality NbN/AIN/NbN tunnel junctions fabricated by reactive dc-magnetron sputtering," Applied Superconductivity Conference 2006, Seattle
  • Uzawa. Y., Wang, Z., Takeda, M., Kroug, M. 2006,"Evaluation of tunneling barriers in superconducting NbN junctions with subharmonic gap structures," Applied Superconductivity Conference 2006, Seattle
  • Shan, W.-L.., Shi, S.-C., Matsunaga, T., Endo, A., Noguchi, T., Uzawa, Y., Takizawa, M. 2006,"Design and Development of SIS mixers for ALMA band 10," Applied Superconductivity Conference 2006, Seattle
  • Takeda, M. Wang, Z., Uzawa, Y. 2006,"SIS mixers based on NbN techniques for ALMA Band 10," Applied Superconductivity Conference 2006, Seattle
  • Shitov, S. V., Koryukin, O. V., Uzawa, Y., Noguchi, T., Uvarov. A. V.,?Cohn, I. A., Bukovski, M. A. 2006,"Design of balanced mixers for ALMA Band-10," Applied Superconductivity Conference 2006, Seattle
  • Shitov, S. V., Koryukin, O. V., Uzawa, Y., Noguchi, T., Uvarov, A. V., Cohn, I. A. 2006,"Development of balanced SIS mixers for ALMA Band-10," 17th International Symposium on Space Terahertz Technology, Observatoire de Paris
  • Mamoru Kamikura, Wenlei Shan, Yu Tomimura, Yutaro Sekimoto, Shin’ichiro Asayama, Naohisa Satou, Yoshizo Iizuka, Tetsuya Ito, Toshiaki Kamba, Yasutaka Serizawa and Takashi Noguchi. 2006,"A 385-500 GHz 2SB SIS Mixer Based on a Waveguide Split-Block Coupler," International Space Science and Teraherz Technology, Paris
  • Y. Serizawa, Y. Sekimoto, T. Ito, W. L. Shan, A. Ueda, T. Kamba, N. Satou, M. Kamikura. 2006,"A 385 - 500 GHz Balanced Mixer with a Waveguide Quadrature Hybrid Coupler," International Space Science and Teraherz Technology, Paris
  • T. Noguchi. 2006,"Superconducting Mixers at Millimeter and Submillimeter Wavelengths for ALMA," 19th International Symposium on Superconductivity, Nagoya, Japan
  • A. Endo. 2006,"Development of Nb/Al-AlN x/Nb SIS Tunnel Junctions for Submillimeter-Wave Mixers," Applied Superconductivity Conference 2006, Seattle, US
  • Yamada, M. 2006,"Wideband millimeter-submillimeter wave source for ALMA telescope calibration," New Horizon of Astrochemistry and Laboratory Spectroscopy, NICT

2005

  • Sugimoto, M. 2005, "ACA Front-End (7m optics studies)," The 6th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Seattle, US
  • Serizawa, Y, et al. 2005, "Evaluation of 385 - 500 GHz balanced mixer," Submillimeter Receiver Workshop, Nanjing
  • Kamikura, M, et al. 2005, "Design of ALMA band 8 Design of ALMA band 8 ortho ortho-mode transducer," Submillimeter Receiver Workshop, Nanjing
  • Sekimoto, Y, et al. 2005, "Developments for ALMA Band 8 (385 ? 500 GHz) Prototype Cartridges," Submillimeter Receiver Workshop, Nanjing
  • Shan, W. 2005, "Development of the ALMA band-8 & band-10 WG SIS mixers," Workshop on Submillimeter Astronomy and Reciever Technologies / Joint Workshop with the 6th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, 南京/中華人民共和国
  • Shitov, S. 2005, "Development of the ALMA band-10 QO SIS mixer," Workshop on Submillimeter Astronomy and Reciever Technologies / Joint Workshop with the 6th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, 南京/中華人民共和国
  • Endo, A., Noguchi, T., Matsunaga, T. and Tamura, T. 2005, "Development of Nb/Al-AlNx/Nb SIS Junctions for High-Jc Submillimeter Mixers," Workshop on Submillimeter Astronomy and Reciever Technologies / Joint Workshop with the 6th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, 南京/中華人民共和国
  • Noguchi, T., Ueda, A., Sekimoto, Y. and Ishiguro, M. 2005, "Photonic Local Oscillator for SIS Mixers," 18th Annual Meeting of the IEEE Lasers andElectro-Optics Society, Sydney, Australia
  • Shan, W., Asayama, S., Kamikura, M., Noguchi, T., Shi, S. and Sekimoto, Y. 2005, "Development of a 385-500GHz SIS Mixer for ALMA Band 8," 16th International Symposium on Space TerahertzTechnology, Goteborg, Sweden
  • Shitov, S., Noguchi, T., Matsunaga, T., Tamura, T., Uvarov, A., Cohn, I. and Hasegawa, T. 2005"A SIS Mixer for ALMA Band 10: Development Concept," 16th International Symposium on Space TerahertzTechnology, Goteborg, Sweden
  • Asayama, S. 2005"Current Status of the ALMA Band 4," Workshop on Submillimeter Astronomy and Receiver Technologies Joint Workshop with the 6th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Purple Mountain Observatory
  • Shitov, S. 2005"Development of a SIS receiver for ALMA band-10," 4th ESA workshop on Millimetre Wave Technology and Applications, Helsinki University of Technology, Espoo, Finland
  • Uzawa, Y. 2005"Band-10 cartridge development," Workshop on Submillimeter Astronomhy and Receiver Technologies, Purple Mountain Observatory, Nanjing, China
  • Wang, Z. 2005"Current status of NbN technique at NICT for ALMA band-10 development," Workshop on Submillimeter Astronomhy and Receiver Technologies, Purple Mountain Observatory, Nanjing, China
  • Shitov, S. 2005"Development of the ALMA band-10 QO SIS mixer," Workshop on Submillimeter Astronomhy and Receiver Technologies, Purple Mountain Observatory, Nanjing, China
  • Shitov, S. 2005"A SIS mixer for ALAM band 10: development concept," 16th international symposium on space terahertz technology, Chalmers University of Technology, Goteborg, Sweden
  • Sugimoto, M. 2005"ACA Front-End (7m optics studies)," The 6th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia, Nanjing, China
  • Yamada, M. 2006,"Wideband millimeter-submillimeter wave source for ALMA telescope calibration," New Horizon of Astrochemistry and Laboratory Spectroscopy, NICT

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