[24p-11F-1~11] 3.11 Nanoscale optical science and near-field optics (formerly 3.12)

1:15 PM - 1:30 PM JST(4:15 AM - 4:30 AM UTC)

[24p-11F-2] Fabrication of Silicon Microparticle Dispersion as Terahertz Wave Control Materials

〇(B)Shun Wakiuchi¹, Taiyu Okatani¹, Naoki Inomata¹, Yoshiaki Kanamori¹ (1.Tohoku Univ.)

Keywords:

metamaterials,terahertz,effective refractive index

While the terahertz region is being considered as a Beyond 5G/6G communication band, there are few useful natural optical materials. Therefore, we created silicon microparticle dispersions with subwavelength structures by dispersing Si cubes with a side of 300 µm fabricated by microfabrication in cyclo olefin polymers at some predetermined concentrations. As a result, we succeeded in controlling the effective refractive index by changing the Si concentration in the dispersion in the terahertz region of 0.1–0.2 THz.