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Associate Professor    Matsuo, Hiroshi

Research Field

  • Radio Astronomy
    Millimeter, Submillimeter and Terahertz instrumentations

Brief Introduction of Research

  • Research activities include developments of astronomical instruments and astronomical observations in terahertz frequencies. Current development activities include superconducting tunnel junction detectors, cryogenic readout electronics as well as application to intensity interferometry know by the name Hanbury-Brown and Twiss. Fast measurement of photon bunches enable intensity correlation and delay time measurements to realize aperture synthesis imaging. Terahertz interferometer from Antarctic plateau and space far-infrared interferometer are proposed for high angular resolution imaging. Astronomical observing programs are on-going with ALMA and JWST to observe distant galaxies and active galactic nuclei at distant universe.

Main Research Achievements

  • “Far-infrared intensity interferometry for high angular resolution imaging"”
    Matsuo, H., 2020, Proc. SPIE 11443 Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave, 114431N.
  • “Terahertz and Far-Infrared Windows Opened at Dome A, Antarctica”
    Shi, S.C., Paine, S., Yao, Q.J., Lin, Z.H., Li, X.X., Duan, W.Y., Matsuo, H., Zhang, Q., Yang, J., Ashley, M.C.B., Shang,Z., Hu, Z.W., 2016, Nature Astronomy, 1, 0001.
  • “Advantages of Photon Counting Detectors for Terahertz Astronomy”
    Matsuo, H., Ezawa, H., 2016, Journal of Low Temperature Physics 184, 718–723.
  • “Detection of an oxygen emission line from a high-redshift galaxy in the reionization epoch”
    Inoue, A.K., Tamura, Y., Matsuo, H., Mawatari, K., Shimizu, I., Shibuya, T., Ota, K., Yoshida, N., Zackrisson, E., Kashikawa, N., Kohno, K., Umehata, H., Hatsukade, B., Iye, M., Matsuda, Y., Okamoto, T., Yamaguchi, Y., 2016, Science 352, 1559-1562.
  • “Evaluation of Submillimeter/Terahertz Camera Performance With the Cryogenic Multi-Channel Read Out System”
    Hibi, Y., Matsuo, H., Sekiguchi, S., Ikeda, H., Fujiwara, M., 2013, IEEE Trans. THz Sci.Tech. 3, 422-427.
  • “Development of multi-Fourier transform interferometer: imaging experiments in millimeter and submillimeter waveband”
    Ohta, I.S., Hattori, M., Matsuo, H., 2007, Applied Optics 46, 2881-2892.
  • “Terahertz imaging with a direct detector based on superconducting tunnel junctions”
    Ariyoshi, S., Otani, C., Dobroiu, A., Sato, H., Kawase, K., Shimizu, H.M., Taino, T., Matsuo, H., 2006, Appl. Phys. Lett. 88, 203503.
  • “Performance of SIS photon detectors for superconductive imaging submillimeter-wave camera (SISCAM)”
    Matsuo, H., Nagata, H., Mori, Y., Kobayashi, J., Okaniwa, T., Yamakura, T., Otani, C., Ariyoshi, S., 2006, SPIE 6275, 627504.
  • “Substructures Revealed by the Sunyaev-Zel’dovich Effect at 150 GHz in the High Resolution Map of RX J1347-1145”
    E. Komatsu, H. Matsuo, T. Kitayama, M. Hattori, R. Kawabe, K. Kohno, N. Kuno, S. Schindler, Y. Suto, K. Yoshikawa, 2001, PASJ 53, 57-62.
  • “FTS Measurements of Submillimeter-Wave Atmospheric Opacity at Pampa la Bola”
    H. Matsuo, A. Sakamoto, S. Matsushita, 1998, PASJ, 50, 359-366.
  • "Seven Matched Bolometers for Millimeter Wave Observations"
    N. Kuno, H. Matsuo, Y. Mizumoto, A.E. Lange, J.W. Beeman, and E.E. Haller, 1993, Int. J. of Infrered and Millimeter-Waves, 14, pp.749-762.
  • "The Submillimeter Spectrum of the Cosmic Background Radiation"
    T. Matsumoto, S. Hayakawa, H. Matsuo, H. Murakami, S. Sato, A.E. Lange, and P.L. Richards, 1988, Astrophys. J., 329, 567.

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