Tera-Photonics Research Team

Team Leader

Hiroaki Minamide


Photo: Hiroaki Minamide


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Tera-Photonics Research Team,
RIKEN Center for Advanced Photonics

519-1399 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-0845 Japan


Our team develops state-of-the-art frequency-tunable THz-wave sources which exploit new THz-wave application fields. A nonlinear optical process is utilized for realizing the THz-wave source which lights up the THz-wave gray zone, and our original design and method will be demonstrated. We develop THz sources with high output, wide tunability, high stability and narrow linewidth.
Active collaboration with both internal and external research groups is carried out for exploring new applications by development of instrument combined with new THz-wave sources. Advanced THz-wave technologies are also being developed in cooperation with industry to establish practical THz-wave sources and technologies in the world.


Engineering, Interdisciplinary science and engineering


Development of kilo-watt-power Terahertz-wave source, Sensitive Terahertz-wave detection, Terahertz-wave applications, Nondestructive measurements, Nonlinear optics


  1. High-output, frequency-agile, ultra-widely tunable THz-wave sources
  2. High-sensitive THz-wave detection
  3. THz-wave applications using frequency-agile THz-wave sources
  4. THz spectroscopic database
Research image

Backward terahertz parametric oscillator(left) and organic nonlinear crystals(right)

Selected Publications

  1. Takida, Y., Nawata, K., Notake, T., Otsuji, T., and Minamide, H.: "Optical up-conversion-based cross-correlation for characterization of sub-nanosecond terahertz-wave pulses” ,Optics Express 30, 7, 11217–11227 (2022).
  2. 南出泰亜: "後進テラヘルツ波パラメトリック光源", CSJ 42 Current Review42 赤外線の化学利用-近赤外からテラヘルツまで- 32-36 (2021).
  3. Minamide, H., Nawata, K., Moriguchi, Y., Takida, Y., and Notake T.: "Injection-seeded terahertz-wave parametric generator with timing stabilized excitation for nondestructive testing applications", Review of Scientific Instruments 92, 9, 093002, 1-8 (2021).
  4. Shibuya, K., Nawata, K., Nakajima, Y., Fu, Y., Takahashi, E., Midorikawa, K., Yasui, T., and Minamide, H.: "Characteristics of nonlinear terahertz-wave radiation generated by mid-infrared femtosecond pulse laser excitation", Appl. Phys. Express14, 9, 092004 (2021).
  5. Han, Z., Ohno, S., and Minamide, H.: “Electromagnetic Wave Tunneling from Metamaterial Antiparallel Dipole Resonance”, Adv. Photonics Res. 2, 2000186, 1-7 (2021).


Hiroaki MinamideTeam Leader
Yuma TakidaResearch Scientist
Takashi NotakeVisiting Scientist
Kouji NawataVisiting Scientist
Seigo OhnoVisiting Scientist
Yoshikiyo MoriguchiVisiting Scientist