[18p-221B-1~15] 4.6 Terahertz Photonics

▼ [18p-221B-9] Fast Spectroscopic Imaging with Multiwavelength Terahertz Parametric Source

〇Kosuke Murate¹, Kazuki Maeda¹, Yunzhuo Guo¹, Kodo Kawase¹ (1.Nagoya Univ.)

Keywords:Terahertz, Parametric generation, Nondestructive testing

In this study, we demonstrated a fast terahertz (THz) spectroscopic imaging system using a multiwavelength injection-seeded THz parametric generator (is-TPG). Multiwavelength is-TPG can identify reagents based on the repetition rate of the pump laser because the spectroscopic measurement is performed in a single pulse. Furthermore, highly stabilized measurements are realized by splitting the THz wave into measurement and reference beams. This system significantly shortens the measurement time for spectroscopic imaging with high stability.