[15p-K504-1~16] 3.8 Terahertz technologies

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[15p-K504-5] Probing inside LiNbO₃ Crystals of Injection-seeded Terahertz Wave Parametric Generator

〇Akitoshi Niidome¹, Sota Mine¹, Kodo Kawase¹, Kosuke Murate¹ (1.Nagoya Univ.)

Keywords:

terahertz,parametric

We have attempted to observe the process of terahertz wave (THz-wave) generation and amplification inside a LiNbO₃ crystal in an injection-seeded terahertz wave parametric generator (is-TPG). The terahertz waves generated inside the crystal were detected by upconversion using pump beam injected from the side of the crystal. As a result, we succeeded in visualizing the increase of noise due to parametric fluorescence as the pump beam propagates through the crystal and the strong generation of terahertz waves from the front of crystal when pulse seed is used.