Photon orbital angular momentum : problems and perspectives

  title={Photon orbital angular momentum : problems and perspectives},
  author={Enrico Santamato},
Electromagnetic fields can carry, besides energy, linear and angular momentum. The exchange of linear momentum with matter produces forces due to radiation pressure. That comet tails point away from the Sun because light carries linear momentum was first suggested by Kepler. A complete account of radiation pressure was developed by Poynting in 1905 in terms… CONTINUE READING