Dipole lasing phase transitions in media with singularities in polarizabilities
Protsenko, I. E.
O'Reilly, Eoin P.
American Physical Society
We show that a divergence in the optical polarizability of a heterogeneous medium with nonlinear amplification and a strong dipole-dipole interaction between particles can lead to a phase transition, for which the dipole momentum of the particles or the dipole radiation rate can be taken as order parameters. The "dipole laser" (Phys. Rev. A 71, 063812 (2005)) can be used both as a simple example of such a second-order phase transition and to provide a recipe for its analysis. We show that similar phase transitions may be possible for a nanoparticle on the surface of an optically active medium and at the "Clausius-Mossotti" catastrophe in a bulk heterogeneous medium.
Plasmon resonance , Refractive-index , NanopArticle (peer-reviewed)s , Enhancement , Laser , Equations , Shape , Gain
Protsenko, I. E. and O’Reilly, E. P. (2006) 'Dipole lasing phase transitions in media with singularities in polarizabilities', Physical Review A, 74(3), 033815 (10pp). doi: 10.1103/PhysRevA.74.033815
© 2006, American Physical Society