[18p-Z09-1~14] 3.9 Terahertz technologies

[18p-Z09-13] Topological charge of light given by double layered metal mesh on focusing optics

〇Seigo Ohno¹, Teruya Ishihara¹ (1.Tohoku Univ.)

Keywords:metasurface, geometric phase

We have reported projection of topological charge in a two-dimensional moiré pattern onto a light through a moiré type meta-surface which consists of double layered metal mesh structure with slight deformation. At this time, we will report the possibility of the topological charge projection in the case that parallax, namely incident angle dependence of the light, is used for the principle to generate a moiré pattern in the regular double layered metal mesh structure without deformation.