Scattering of an Airy light-sheet by a non-spherical particle using discrete dipole approximation

摘要

The scattering of an Airy light-sheet by a non-spherical particle is investigated using the discrete dipole approximation (DDA). The internal and near-surface fields of the cube placed in an Airy light-sheet are calculated, and the effects of the transverse dimension factor w(0), the attenuation factor a, and beam center z(0) are mainly discussed. w(0) can increase the number of side lobes incident on the target, thereby increase the wave jet energy. Increasing the attenuation coefficient a leads to less wave jet energy. By moving the light-sheet, the side lobe of the incident light-sheet increases, and the wave jet energy increases. Potential applications include optical manipulation of particles, particle sizing, optical imaging, etc. (C) 2018 Elsevier Ltd. All rights reserved.