Scattering of light by molecules of light
  We study the scattering properties of optical dipole-mode vector solitons recently predicted theoretically and generated in a laboratory. We demonstrate that such a radially asymmetric composite self-trapped state resembles ``a molecule of light'' which is extremely robust, survives a wide range of collisions, and displays new phenomena such as the transformation of a linear momentum into an angular momentum, etc.We present also experimental verifications of some of our predictions. 
J. J. Garcia-Ripoll, V. M. Perez-Garcia, W. Krolikowski, Y. S. Kivshar