Faculty Members

kobayashi-hirokazu-1.jpg

Associate Professor
KOBAYASHI, Hirokazu

  • Year of birth: 1982
  • Gender: Male
  • Affiliation:
    - School of Systems Engineering
    - Electronic and Photonic Systems Engineering Course, Department of Engineering, Graduate School of Enginering
    - Research Center for Materials Science and Engineering, Research Institute
    - Laboratory for Unified Quantum Devices, Research Institute
Areas of specialization
Laboratory/research office Light Control and Optical Network Laboratory
We study (a) ultrahigh capacity optical networks using Multiple-Input Multiple-Output (MIMO) technology and (b) high precision non-invasive optical measurement, including optical coherence tomography (OCT) and fiber sensing.
Current reseach topics
Educational background 2011: Doctor
2007: Master
2005: Bachelor
Professional background
Licenses
Academic societies

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Courses

* Courses provided in English are shown with (E) mark

Undergraduate school
  • Introduction to Communication Systems
  • Experiments of Electronic and Photonic 1
  • Introduction to Communication Technologies
  • Introduction to Optics
  • Experiments in System Engineering
  • Graduation Thesis
Graduate school
  • Seminar 1
  • Seminar 2
  • Individual Work for Graduate
  • Advanced Seminar 1
  • Advanced Seminar 2

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Research activities

Research papers
  1. Authors: Kazuhisa Ogawa, Hirokazu Kobayashi, Akihisa Tomita
    Title: Classical reconstruction of interference patterns of position-wave-vector–entangled photon pairs by the time-reversal method
    Journal: Physical Review A, Vol. 97, No. 2, pp. 023823-1-023823-10
    Year: 2018
  2. Authors: Mikko Tukiainen, Hirokazu Kobayashi, Yutaka Shikano
    Title: Quantification of concurrence via weak measurement
    Journal: Physical Review A, Vol. 95, p. 052301
    Year: 2017
  3. Authors: Badar Mudabbir, KOBAYASHI Hirokazu, IWASHITA Katsushi
    Title: Chromatic dispersion measurement with double sideband phase noise canceled OFDR
    Journal: Optics Communications, Vol. 356, pp. 350-355
    Year: 2015
  4. Authors: Yusuf Turek, Hirokazu Kobayashi, Tomotada Akutsu, Chang-Pu Sun, Yutaka Shikano
    Title: Post-selected von Neumann measurement with Hermite–Gaussian and Laguerre–Gaussian pointer states
    Journal: New Journal of Physics, Vol. 17, p. 083029, IOP Institute of Physics
    Year: 2015
  5. Authors: Kazuhisa Ogawa, Shuhei Tamate, Hirokazu Kobayashi, Toshihiro Nakanishi, Masao Kitano
    Title: Observation of nonlinear variations in a three-vertex geometric phase in a two-photon polarization qutrit
    Journal: Physical Review A, Vol. 91, p. 062118, American Physical Society
    Year: 2015
  6. Authors: Kazuhisa Ogawa, Shuhei Tamate, Toshihiro Nakanishi, KOBAYASHI Hirokazu, Masao Kitano
    Title: Classical realization of dispersion cancellation by time-reversal method
    Journal: Physical Review A, Vol. 91, p. 013846, American Physical Society
    Year: 2015
  7. Authors: KOBAYASHI Hirokazu, NONAKA Koji, YUTAKA Shikano
    Title: Stereographical visualization of a polarization state using weak measurements with an optical-vortex beam
    Journal: Physical Review A, Vol. 89, p. 053816
    Year: 2014
  8. Authors: Kazuhisa Ogawa, Shuhei Tamate, Hirokazu Kobayashi, Toshihiro Nakanishi, Masao Kitano
    Title: Time-reversed two-photon interferometry for phase superresolution
    Journal: Physical Review A, Vol. 88, p. 063813
    Year: 2013
  9. Authors: LU Mifang, KOBAYASHI Hirokazu, NONAKA Koji
    Title: Polarization-Stabilized Pulse Correlation Measurement for Remote Fiber Sensing Using Polarization Scrambled Pulses
    Journal: Japanese Journal of Applied Physics, Vol. 52, pp. 126603-1-126603-8
    Year: 2013
  10. Authors: LU Mifang, NONAKA Koji, KOBAYASHI Hirokazu, Yang Jun, Yuan Libo
    Title: Quasi-distributed region selectable gas sensing for long distance pipeline maintenance
    Journal: Measurement Science and Technology, Vol. 24, No. 9, p. 095104
    Year: 2013
  11. Authors: KOBAYASHI Hirokazu, PUENTES Graciana, SHIKANO Yutaka
    Title: Extracting joint weak values from two-dimensional spatial displacements
    Journal: Physical Review A, Vol. 86, pp. 053805-1-053805-4
    Year: 2012
  12. Authors: NONAKA Koji, KOBAYASHI Hirokazu, Toshimasa Tszuki, Yuhei Masaoka, Xunjian Xu
    Title: Suppression of instability on sensing signal of optical pulse correlation measurement in remote fiber sensing
    Journal: Journal of Sensors, Vol. 2012, pp. 107847-107853, Hindawi Publishing Corporation
    Year: 2012
  13. Authors: NONAKA Koji, KOBAYASHI Hirokazu, 北野 正雄
    Title: Helical mode conversion using conical reflector
    Journal: Optics Express, Vol. 20, No. 13, pp. 14064-14074, Optical Society of America(OSA)
    Year: 2012
  14. Authors: H. Kobayashi, Y. Ikeda, S. Tamate, T. Nakanishi, M. Kitano
    Title: Nonlinear behavior of geometric phases induced by photon pairs
    Journal: Phys. Rev. A, Vol. 83, p. 063808
    Year: 2011
  15. Authors: H. Kobayashi, S. Tamate, T. Nakanishi, K. Sugiyama, M. Kitano
    Title: Direct observation of geometric phases without state evolution
    Journal: AIP Conference Proceedings (QCMC), Vol. 1363, pp. 373-376
    Year: 2011
  16. Authors: H. Kobayashi, S. Tamate, T. Nakanishi, K. Sugiyama, M. Kitano
    Title: Observation of geometric phases in quantum erasers
    Journal: J. Phys. Soc. Jpn., Vol. 80, p. 034401
    Year: 2011
  17. Authors: H. Kobayashi, S. Tamate, T. Nakanishi, K. Sugiyama, M. Kitano
    Title: Direct observation of geometric phases using a three-pinhole interferometer
    Journal: Phys. Rev. A, Vol. 81, p. 012104
    Year: 2010
  18. Authors: T. Nakanishi, H. Kobayashi, K. Sugiyama, M. Kitano
    Title: Full Quantum Analysis of Two-Photon Absorption Using Two-Photon Wave Function: Comparison of Two-Photon Absorption with One-Photon Absorption
    Journal: J. Phys. Soc. Jpn., Vol. 78, p. 104401
    Year: 2009
  19. Authors: S. Tamate, H. Kobayashi, T. Nakanishi, K. Sugiyama, M. Kitano
    Title: Geometrical aspects of weak measurements and quantum erasers
    Journal: New. J. Phys., Vol. 11, p. 093025
    Year: 2009
  20. Authors: T. Nakanishi, K. Sakemi, H. Kobayashi, K. Sugiyama, M. Kitano
    Title: Two-Photon Interference of Photon Pairs Created in Photonic Crystal Fibers
    Journal: J. Phys. Soc. Jpn., Vol. 78, p. 024402
    Year: 2009
Invited lectures
  1. , 2016/09/14
Awards
  1. Physical Review A, Editor's Suggestion [Phys. Rev. A, 89, 053816 (2014)], American Physical Society, 2014
  2. Physical Review A, Editor's Suggestion [Phys. Rev. A, 88, 063813 (2013)], American Physical Society, 2013
  3. JPSJ Editor's Choice [J. Phys. Soc. Jpn., Vol.80, 034401 (2011)], The Physical Society of Japan, 2011
Grants-in-Aid for Scientific Research from the Japanese government
  1. Project title: Generation of higher-order helical beam for spatial mode mulplexing by using conical reflector
    Category: Grant-in-Aid for Young Scientists(B)
    Project number: 25790068
    Project period: 2013/04-2015/03
    Total budget amount: 4,420,000 yen
    Keywords: 

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Social activities

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