Electromagnetic Scattering by a Homogenous Spherical Particle Using Non-Diffracting Focused Airy Beam

The study of the scattering of structured light beams is of great interest to the researchers owing to their unique characteristics and potential applications in many fields. So, in this manuscript, the electromagnetic wave scattering for a non-diffracting focused Airy beam by a homogenous spherical particle is inspected within the domain of the generalized Lorenz–Mie theory (GLMT) and plane wave spectrum method. Incident electromagnetic fields of Airy beams are expanded by employing the beam shape coefficients (BSCs), whose mathematical expressions are derived by implementing the vector angular spectrum decomposition method (VASDM) and using the spherical vector wave functions (SVWFs). The undetermined expansion coefficients regarding scattered fields can be calculated by considering the boundary conditions (BCs) on the surface of the homogeneous spherical particle. The scattered intensities for the far-field/far-zone are numerically analyzed, and results depict that the Airy beam configuration parameters, such as attenuation factor, transverse scale parameter, center coordinates, and particle radius, strongly influence the far-field scattered intensities.