Laser beam carrying orbital angular momentum scattering from a particle: Near-field intensity and phase numerical study

• The interaction of the light carrying orbital angular momentum (OAM) with a single spherical particle using a commercial multi-physics simulation platform. • The scattering of light with wavelength of 532 nm from an ice particle within an observation volume of radius 10 times the wavelength (5.32 µm) in order to balance the computational resources and present near-field magnitude and phase of the scattered field. • The particle placed at the various locations of a Gaussian beam, as well as move it to through the vortex and annulus of the light that carries OAM with topological charges {1, 2 and 3}. • The numerical solutions showcase the variation in details of the scattering field complex values and provide a valuable insight in the field behaviour near and inside the particle for different illumination we observe scattering field magnitude and phase spatial distributions and their correlations in two and three-dimensional. The interaction of the light carrying orbital angular momentum (OAM) with a single spherical particle is explored using a commercial multi-physics simulation platform. The scattering of light with wavelength of 0.532 µm from an ice particle is presented. The research focuses on studying the light-matter interface within an observation volume of radius 10 times the wavelength (5.32 µm) and present near-field magnitude and phase of the scattered field. We place the particle at the various locations of a Gaussian beam, as well as move it to through the vortex and annulus of the light that carries OAM with topological charges of 1, 2 and 3. The numerical solutions showcase the variations of the scattering field complex values and provide a valuable insight in the field behaviour near and inside the particle for different illumination. We show two and three-dimensional scattering field magnitude and phase spatial distributions and their correlations.