[11p-E310-1~11] 3.11 Nanoscale optical science and near-field optics

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[11p-E310-3] Emergence of transmission window by a metasurface with intra-unit-cell moiré patterns

〇Shunya Haruna¹, Hiroyuki Kurosawa¹, Seigo Ohno², Tetsuya Ueda¹ (1.Kyoto Inst. Tech, 2.Tohoku Univ.)

Keywords:

metamaterial,metasurface,moire

Moiré metasurfaces have received considerable attention because of their topological nature. Typically, moiré metasurfaces are formed by introducing a small displacement on one side of two periodic structures. In this study, a moiré pattern is formed within the unit cell of a metasurface, and these unit cells are arranged periodically. Numerical simulations and experiments show that a transmission window emerges in a transmission dip of a fundamental mode. The resonance frequency of the window depends on the displacement of the moiré pattern.