[22p-C201-1~6] 3.8 Terahertz technologies (formerly 3.9)

△ [22p-C201-2] Construction of high-sensitivity narrow-linewidth terahertz polarization-resolved spectroscopy system using polarization-modulated homodyne detection

〇Kohei Eguchi¹, Takashi Arikawa^1,2, Koichiro Tanaka^1,3 (1.Dept. of Phys., Kyoto Univ., 2.JST PRESTO, 3.iCeMS, Kyoto Univ.)

Keywords:Terahertz, Polarization-resolved spectroscopy

Currently, there is no method that can easily achieve both high polarization resolution and high frequency resolution for spectroscopic measurements in the terahertz region. We are aiming at performing spectroscopic measurements with high sensitivity in a simple measurement system using a narrow-bandwidth terahertz light source and a high-sensitivity detector. Toward this end, we have devised and demonstrated a new homodyne detection method using polarization modulation. In this talk, the evaluation of the constructed system and the spectroscopic measurements using the system will be discussed.