Multipolar expansions for scattering and optical force calculations beyond the long wavelength approximation
arXiv:2208.07107 · doi:10.1103/PhysRevB.106.115428
Abstract
We review three different approaches for the calculation of electromagnetic multipoles, namely the Cartesian primitive multipoles, the Cartesian irreducible multipoles and the spherical multipoles. We identify the latter as the best suited to describe the scattering of electromagnetic radiation, as exemplified for an amorphous silicon sphere. These multipoles are then used to calculate the optical force acting on semiconductor, dielectric or metallic particles in a wide wavelength range, from the dipolar down to the Mie regimes.
References in corpus (14)
- Backward Pulling Force from a Forward Propagating Beam
- An electromagnetic multipole expansion beyond the long-wavelength approximation
- Theory and applications of atomic and ionic polarizabilities
- Nonradiating anapole states in nanophotonics: from fundamentals to applications
- Multimode directionality in all-dielectric metasurfaces
- Symmetry analysis and multipole classification of eigenmodes in electromagnetic resonators for engineering their optical properties
- Origin of the anapole condition as revealed by a simple expansion beyond the toroidal multipole
- On the dynamic toroidal multipoles from localized electric current distributions
- Exact dipolar moments of a localized electric current distribution
- Describing meta-atoms using the exact higher-order polarizability tensors
- Optical force on toroidal nanostructures: toroidal dipole versus renormalized electric dipole
- Complete multipolar description of reflection and transmission across a metasurface for perfect absorption of light
- Electromagnetic sources beyond common multipoles
- Multipolar Origin of the Unexpected Transverse Force Resulting from Two-Wave Interference