Terahertz (THz) wave is one of the electromagnetic waves lies between radio waves and infrared waves, and shares the characteristics of both. It has many potential applications in wide area.

We are working on the development of high power and compact THz wave sources based on wavelength conversion technique in nonlinear crystal with lasers. Our unique THz wave sources allow us to detect reagents under high absorbed shielding materials, 3D THz computed tomography and many other imaging which were difficult with other systems in the past.


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News

2026.07.01

Sota Mine, Kodo Kawase, Kosuke Murate, “Two-pumped terahertz parametric generator,” Optics Letters 51, (13), pp. 3793-3796 (2026)

2026.06.01

Akitoshi Niidome, Sota Mine, Kodo Kawase, and Kosuke Murate, "Probing the terahertz wave distribution inside a crystal in a terahertz wave parametric source," Optics Express 34, (11), pp. 20414-20422 (2026)

2026.05.01

K. Murate, S. Mine, K. Kawase, "Terahertz Scanner System based on Parametric Wavelength Conversion," Taiwan THz spring workshop 2026, National Sun Yat-sen University, Kaohsiung, Taiwan (May 1, 2026).

2026.04.27-30

K. Murate, S. Mine, K. Kawase, "Terahertz Imaging Technique Based on Terahertz Parametric Wavelength Conversion (Invited)," The 13th International Symposium on Ultrafast Phenomena and THz Waves (ISUPTW 2026), Hangzhou, China (Apr. 27 - 30, 2026).

2026.04.15

K. Murate, S. Mine, and K. Kawase, "Spectroscopic Terahertz Imaging using Parametric Generation and Detection(Invited)," 11th International Conference on Optical Terahertz Science and Technology (OTST2026), JB Duke Hotel, Durhum, NC, USA (Apr. 12-17, 2026).

2026.04.14

K. Kawase, S. Mine, and K. Murate, " Evolution of THz parametric generation and detection and their applications (Invited),” SPIE Photonics Europe, Conference 14079 Terahertz Photonics IV, Palais de la Musique et des Congrès, Strasbourg, France (Apr. 12 – 16, 2026).

2026.01.01

Sota Mine, Kaito Abe, Shusaku Nakajima, Joel Edouard Nkeck, Kodo Kawase, François Blanchard, Kosuke Murate and Chiko Otani, ”Pulse width dependence of terahertz parametric generation in the sub-picosecond regime,” Optics Letters 51 (1),pp.157-160 (2026)

2025.11.07

K. Murate, S. Mine F. Blanchard and K. Kawase, "Real-time Terahertz Spectroscopy Using Parametric Wavelength Conversion (Invited)," PhotonIcs and Electromagnetics Research Symposium (PIERS 2025), 2P5, Makuhari Messe, Chiba, Japan (Nov. 5-9, 2025).

2025.10.29

Toshiki Kinoshita, Sota Mine, Shin’ichiro Hayashi, Kodo Kawase, Kosuke Murate, "Terahertz-Wave Parametric Detection Using Pulse Train Pump Beam for Remote Sensing Applications,"  Journal of Infrared, Millimeter, and Terahertz Waves, Vol. 46, Airticle No. 78 (2025)

　

2025.10.21-24

K. Kawase, S. Mine, and K. Murate, "Realtime THz spectroscopy using NLO crystals (Invited)," 3rd International Conference on Materials Science, Engineering and Technology, Singapore (Oct. 21 – 24, 2025).