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Outline

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.

Fields

Engineering, Interdisciplinary science and engineering

Keywords

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

Subjects

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

Selected Publications

1. Moriguchi,Y., Tokizane, Y., Takida, Y., Nawata, K., Nagano, S., Sato, M., Otsuji, T.,and Minamide, H.:"Frequency-agile injection-seeded terahertz-wave parametric generation", Optics Letters, Vol. 45, Issue 1, pp. 77-80, (2020).
2. Bernerd, C., Segonds, P., Debray, J., Roux, J-F., Hérault, E., Coutaz, J-L., Shoji, I., Minamide, H., Ito, H., Lupinski, D., Zawilski, K., Schunemann, P., Zhang, X., Wang, J., Hu, Z., and Boulanger, B.: “Evaluation of eight nonlinear crystals for phase-matched TeraHertz second-order difference-frequency generation at room temperature”, Optical Materials Express, Vol. 10, No. 2, PP. 561-576, (2020).
3. Koyama, M., Ito, H., Notake, T., Minamide, H.: “Second-order Nonlinear Coefficient measurement by a Tunable Continuous-Wave Pump Laser”, The Review of Laser Engineering, Vol. 48, No. 9, pp.374-380, (2019).
4. Notake, T., Takeda, M., Okada, S., Hosobata, T., Yamagata Y., and Minamide, H.: "Characterization of all second-order nonlinear-optical coefficients of organic N-benzyl-2-methyl-4-nitroaniline crystal", Scientific Reports, volume 9, Article number: 14853, (2019).
5. Takida, Y., Ikeo, T., Nawata, K., Wada, Y., Higashi, Y., and Minamide, H.:“Terahertz differential absorption spectroscopy using multifurcated subnanosecond microchip laser”, Appl. Phys. Lett., Vol. 115, Issue 12, 121102, (2019).

Members

Seeking a Postdoctoral Researcher or Research Scientist (W20044)

Attosecond Science Research Team