Ultrathin and high-efficiency Pancharatnam-Berry phase metalens for millimeter waves
| Autor: | Jorge Teniente, Bakhtiyar Orazbayev, Sergei A. Kuznetsov, Alexia Moreno-Penarrubia, Miguel Beruete |
|---|---|
| Přispěvatelé: | Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación, Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. ISC - Institute of Smart Cities, Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko, Elektroniko eta Telekomunikazio Saila |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Wavefront Physics Fabrication Ultra-thin PB metalens Physics and Astronomy (miscellaneous) business.industry Phase (waves) Millimeter waves 02 engineering and technology Pancharatnam-Berry metasurfaces 021001 nanoscience & nanotechnology Rotation 01 natural sciences law.invention Lens (optics) Optics Transmission (telecommunications) Geometric phase law 0103 physical sciences Millimeter 0210 nano-technology business |
| Zdroj: | Academica-e. Repositorio Institucional de la Universidad Pública de Navarra instname Academica-e: Repositorio Institucional de la Universidad Pública de Navarra Universidad Pública de Navarra |
| Popis: | Applying the Pancharatnam–Berry (PB) principle to half-wave plate (HWP) metasurfaces allows the manipulation of wavefronts along with the conversion of the handedness of circularly polarized incident waves by simply rotating the meta-atoms that compose the metasurface. PB metasurfaces (PBM) working in transmission mode with four or more layers have been demonstrated to reach levels of transmission effi- ciency near 100% but also have resulted in bulky structures. On the other hand, compact tri-layer ultrathin (k/8) designs have reached levels near 90% but are more challenging than single- or bi-layer structures from a manufacturing viewpoint. Here, we propose a compact ultrathin ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|