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

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-C213-1] Quantitative Evaluation of χ⁽²⁾ Tensor Components for Efficient Terahertz Wave Generation in PNPA Single Crystals

〇(M1)Kohei Ueyama¹, Masato Sotome^1,2, Sachio Horiuchi³, Takashi Kondo^1,2 (1.U-Tokyo, 2.RCAST, 3.AIST)

Keywords:

Terahertz,Nonlinear Optics,Organic

PNPA single crystals are promising materials for efficient terahertz-wave generation. In this study, we determined the correspondence between the crystallographic axes and dielectric principal axes, and evaluated the refractive index and absorption coefficient by THz time-domain spectroscopy. We further analyzed the incident-polarization-angle dependence of the emitted THz waves and quantitatively evaluated each component of the χ⁽²⁾ tensor by comparison with ZnTe. The χ_ZZZ component was found to be dominant, and the conditions for efficient THz-wave generation will be discussed.