A reflective-type, quasi-optical metasurface filter

• Published in: Journal of applied physics Vol. 122; no. 6
• Main Authors: Sima, Boyu, Momeni Hasan Abadi, Seyed Mohamad Amin, Behdad, Nader
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 14.08.2017
• Subjects: Computer simulation; Metasurfaces; Phase shift; Spatial filtering; Specular reflection; Unit cell

We introduce a new technique for designing quasi-optical, reflective-type spatial filters. The proposed filter is a reflective metasurface with a one dimensional, frequency-dependent phase gradient along the aperture. By careful design of each unit cell of the metasurface, the phase shift gradient p...