[22p-A402-14~20] CS.3 Code-sharing Session of 3.4 & 3.13

△ [22p-A402-14] Direct measurements of temperature-dependent refractive indices of a wavelength-conversion material: LaBGeO₅

〇Yuki Kagami¹, Shun Nakagawa¹, Ichiro Shoji¹ (1.Chuo Univ.)

Keywords:wavelength-conversion, refractive index, nonlinear optics

LaBGeO₅ (LBGO) is superior to conventional UV generating wavelength-conversion materials on no hygroscopicity and ability of periodical poling as well as transparency down to ~195 nm. In this work, we directly measured the temperature-dependent of refractive indices of the ordinary and extraordinary wave of LBGO using the minimum deviation method. Based on the measurements, the Sellmeier equation with temperature-dependent is derived.