TY - JOUR T1 - Observation of negative refraction and negative phase velocity in left-handed metamaterials A1 - Aydin, K. A1 - Guven, K. A1 - Soukoulis, C.M. A1 - Ozbay, E. JA - Applied Physics Letters Y1 - 2005 VL - 86 SP - 124102-1 EP - 3 N1 - 07.11.2011 M2 - doi: 10.1063/1.1888051 ER -