In this contribution, we discuss the possibility of exploiting the theory of composite vortices for manipulating the reflected beam by a single reflective metasurface. In particular, by designing a metasurface able to reflect both a vortex and a vortex-free component, we show that its scattering pattern can be tilted according to the amplitude ratio between the two components. This preliminary results confirm that composite vortex properties can be exploited for beam-shaping applications in different frequency ranges.
Barbuto, M., Bassotti, A., Alu, A., Bilotti, F., Toscano, A. (2021). Structuring the reflected beams by a single metasurface by exploiting composite vortex properties. In 2021 15th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2021 (pp.35-37). Institute of Electrical and Electronics Engineers Inc. [10.1109/Metamaterials52332.2021.9577169].