9:30 AM - 11:30 AM [6a-PA3-22] Evaluation on the Electric Field Strength Generated by Temperature Change of Pyroelectric Single Crystal of LiNbO3 by Tera-herz Spectroscopy 〇Naoaki Harada1, Shinzo Yoshikado1, Yuuki Sato1 (1.Doshisha Univ.)