Extension of Babinet's relations to reflective metasurfaces: Application to the simultaneous control of wavefront and polarization
| Autor: | Fujikawa, Takayoshi, Nakanishi, Toshihiro |
|---|---|
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Phys. Rev. Applied, 22, 034002 (2024) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevApplied.22.034002 |
| Popis: | We extend Babinet's relations, which are originally derived for transmissive metasurfaces, to reflective metasurfaces embedding planar metallic structures in a substrate containing a reflection mirror. To verify the extended Babinet's relations, we investigate two types of reflective metasurfaces embedding self-complementary structures, which produce $\pi$-phase difference between two orthogonal linear polarizations under specific conditions required for the extended Babinet's relations. Both theoretical and experimental studies demonstrate a metasurface-based half-wave plate with a reflective metasurface including single self-complementary structures in the terahertz regions. In addition, we study a reflective metasurface with embedded self-complementary structures with phase gradient in reflection, and demonstrate simultaneous implementation of anomalous reflection and polarization conversion with high efficiency. Comment: 12 pages, 11 figures |
| Databáze: | arXiv |
| Externí odkaz: |
|