Open AccessHighly efficient generation of Bessel beams with polarization insensitive metasurfaces
Author(s) -
Muhammad Rizwan Akram,
Muhammad Qasim Mehmood,
Tauseef Tauqeer,
Ahsan Sarwar Rana,
Ivan D. Rukhlenko,
Weiren Zhu
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.009467
Subject(s) - bessel function , optics , polarization (electrochemistry) , physics , bessel beam , isotropy , metamaterial , circular polarization , phase (matter) , quantum mechanics , chemistry , microstrip
We present a generic approach for the generation of pseudo non-diffracting Bessel beams using polarization insensitive metasurfaces with high efficiency. Cascaded unit cells, which are fully symmetric, are designed for the complete 2π phase control in the transmission mode. Based on the topological arrangements of such unit cells, two metasurfaces for the generation of zero-order (i.e., single phase profile) and first-order (i.e., merger of two distinct phase profiles) Bessel beams are designed and characterized. Both numerical simulations and experimental measurements are in agreement with each other, confirming the electromagnetic characteristics of the reported Bessel beams. Owing to the isotropy of the unit cells and the rotational symmetry of the arrangements, the proposed metasurfaces are polarization insensitive, providing a promising avenue for achieving such wave manipulations with any linear or circular polarization.