PT Journal AU Busch, K Freymann, Gv Linden, S Mingalaeev, SF Tkeshelashvili, L Wegener, M TI Periodic nanostructures for photonics SO Physics reports PY 2007 BP 101 EP 202 VL 444 IS 3-6 DI 10.1016/j.physrep.2007.02.011 LA german ER