2021年第68回応用物理学会春季学術講演会

講演情報

一般セッション(口頭講演)

3 光・フォトニクス » 3.9 テラヘルツ全般

[18p-Z09-1~14] 3.9 テラヘルツ全般

2021年3月18日(木) 13:30 〜 17:15 Z09 (Z09)

坪内 雅明(量研機構)、有川 敬(京大)

16:30 〜 16:45

[18p-Z09-12] Propagation loss of metal-coated dielectric parallel-plate waveguide in transverse-electric (TE) mode

Yuyuan Huang1、Kuniaki Konishi2、Momoko Deura1、Yusuke Shimoyama1、Junji Yumoto2、Makoto Kuwata-Gonokami2、Yukihiro Shimogaki1、Takeshi Momose1 (1.Univ. of Tokyo. Sch. of Eng.、2.Univ. of Tokyo. Sch. of Sci.)

キーワード:terahertz waveguides, propagation loss, required coating film thickness

The propagation loss of metal-coated dielectric parallel-plate waveguide (PPWG) was studied theoretically and experimentally in transverse-electric (TE) mode. The physical model was developed for simulating the loss of metal-coated PPWG from the model for all-metallic PPWG. Film thickness dependence on Au-coated PPWG was studied, and conductivity in the coated metal film was the dominant factor. The derived model can be applied for estimating required film thickness for metal-coated dielectric waveguides at an arbitrary frequency, material, and the distance between plates. It is possible to design a low-loss metal-coated dielectric waveguide based on this study.