Angular Diffraction of Airy OAM Beam at Millimeter Wave Band

This paper presents the angular counterpart of the conventional diffraction of Airy OAM beams from single and multiple slits, achieved through the use of angular masks. This study offers a comprehensive insight into the transmission of Airy OAM beams through angular masks, which is essential for understanding the fundamental principles of diffraction. The phase distribution in the simulation is calculated through the paraxial Gaussian beam formula and the Airy beam formula. Theoretical prediction shows the sinc
²
function is the envelope for the discrete OAM modes. The simulation result show that the Airy beam remains stable passing through different masks. The non-diffraction characteristics of Airy OAM beams exhibit excellent performance at 35 GHz.