See also: E.V. Kuznetsov, A.V. Shelaev, D.V. Kazantsev, E.A. Kazantseva
PACS: 07.60.+j, 07.79.Fc, 61.46.+w, 68.37.Ps, 68.65.Pq, 85.30.De, 87.64.+t