[16a-M_103-1~9] 12.3 Functional Materials and Novel Devices

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[16a-M_103-4] Study on a measurement method of liquid crystal materials in the millimeter-wave region using a downsized waveguide test cell

〇Tosiaki Nose¹, Riki Abe¹, Riko Nakayama¹, Ryota Ito¹, Michinori Honma¹ (1.Akita Pref. Univ.)

Keywords:

liquid crystal,millimeter wave

Liquid crystals are expected to find applications in millimeter-wave and terahertz-wave technologies; however, the development of liquid crystal materials with higher performance is strongly desired. In the development of novel materials, the establishment of appropriate evaluation methods is also important, and measurement techniques using waveguides have been proposed to date. However, as advances in liquid crystal materials have led to higher refractive indices, the excitation of higher-order modes in waveguides has become a concern. In this study, we investigate a measurement method that employs a compact waveguide of an appropriate size to ensure measurements under stable fundamental-mode conditions.