The invention discloses a method for generating real space and
K space Airy beam arrays based on a metasurface, and belongs to the field of micro-nano
optics. The method comprises the following steps: performing analog calculation on the
nano antenna by adopting a
simulation method, accurately and effectively regulating and controlling the propagation distance and the propagation track of an emergent
Airy beam by adjusting the size and
azimuth angle distribution of a nano column array, and selecting to obtain the
nano antenna meeting the metasurface composition requirement; after the geometric dimensions of the nano-column units are determined, obtaining the dimensions and
azimuth angle distribution of the nano-column arrays covering 0-2pi phases according to a phase distribution
algorithm for generating real space and
K space Airy beam arrays, i.e., determining the dimensions and rotation angles of each nano-column unit, and coding and generating a
processing file of a corresponding medium metasurface structure;
processing the
broadband medium metasurface by utilizing a
processing file and adopting a micro-nano processing technology; when different circularly polarized light beams are incident, obtaining Airy beam arrays in a real space and a
K space, thereby improving the parallel working efficiency of the device remarkably.