Faculty Members


Associate Professor KOBAYASHI Hirokazu

Year of birth 1982 Gender Male
Affiliation School of Systems Engineering
Research Center for Materials Science and Engineering, Research Institute
Laboratory for Unified Quantum Devices, Research Institute
Job titles
Personal web site

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
Academic societies

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

Research activities

Research papers ▼

  1. 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: 2015/12
  2. 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: 2015/08/17
  3. 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: 2015/06/16
  4. 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: 2015/01/30
  5. 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: 2014/05/12
  6. 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: 2013/12/05
  7. 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: 2013/11/19
  8. 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: 2013/08/06
  9. 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: 2012/11/15
  10. 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: 2012/11/08
  11. 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: 2012/06/11
  12. 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: 2011/06/09
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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

Keynote lectures ▼

Invited lectures ▼

  1. , 2016/09/14

Notable projects ▼

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

Patents ▼

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

Competitive research funds ▼

Social activities

Committee roles ▼

Published books ▼