Energy, linear momentum, and angular momentum exchange between an electromagnetic wave-packet and a small particle

Abstract

Invoking Maxwell's classical electrodynamics in conjunction with expressions for the electromagnetic (EM) energy, momentum, force, and torque, we use a few simple examples to demonstrate the nature of linear and angular momentum exchange between a wave-packet and a small spherical particle. The linear and angular momenta of the EM field. when absorbed by the particle, will be seen to elicit different responses from the particle.