Quasi-one-dimensional ballistic ring in the field of circularly   polarized electromagnetic wave
  Dynamics is studied of an electron in a quasi-one-dimensional ballistic ring under circularly polarized electromagnetic field propagating along the normal to the ring plane. The average emission intensity from the ring is calculated. The value and direction of the electron average angular velocity in the ring depend on the incident wave parameters. It is found that the ring average dipole moment can remain constant under certain conditions. Possibility is shown of higher harmonics enhancement in the ring radiation spectrum. 
E. M. Epshtein (1), E. G. Fedorov (2), G. M. Shmelev (3) ((1)   Institute of Radio Engineering and Electronics of the Russia...