[9p-C213-1~12] 3.8 Terahertz technologies

2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-C213-4] Cherenkov phase-matched terahertz time-domain spectroscopy based on a LiNbO₃ waveguide pumped by a Yb fiber laser

〇Akitoshi Niidome¹, Sota Mine^2,1, Gabriel Gandubert³, Francois Blanchard³, Kosuke Murate¹ (1.Nagoya Univ., 2.ISEHS, Okayama Univ., 3.ETS)

Keywords:

terahertz

In this study, we developed a broadband terahertz (THz) time domain spectroscopy (THz-TDS) system driven by a 1 µm band ytterbium doped fiber laser. By generating and detecting THz-waves through Cherenkov phase matching using a 3 µm thick nonlinear optical waveguide, we achieved a broad bandwidth reaching 6.5 THz and a practical dynamic range. Because this method has only a small dependence on the wavelength of the pump laser, it can operate with lasers of various wavelengths and can serve as a versatile high performance THz-TDS.