title: Electromagnetic force and torque on magnetic and negative-index scatterers.
abstract: We derive the analytic expressions of the electromagnetic force and torque on a dipolar particle, with arbitrary dielectric permittivity and magnetic permeability. We then develop a general framework, based on the coupled dipole method, for computing the electromagnetic force and torque experienced by an object with arbitrary shape, dielectric permittivity and magnetic permeability.
authors.affiliation: Institut Fresnel (UMR 6133), Université Paul Cézanne, Avenue Escadrille Normandie-Niemen, F-13397 Marseille cedex 20, France.
authors.forename: Patrick C
authors.initials: PC
authors.lastname: Chaumet
authors.forename: Adel
authors.initials: A
authors.lastname: Rahmani
mesh_terms: D003198:Computer Simulation; D004574:Electromagnetic Fields; D008027:Light; D008962:Models, Theoretical; D052898:Optical Tweezers; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation; D013314:Stress, Mechanical; D019415:Torque