First Experimental Observation of Superscars in a Pseudointegrable   Barrier Billiard
  With a perturbation body technique intensity distributions of the electric field strength in a flat microwave billiard with a barrier inside up to mode numbers as large as about 700 were measured. A method for the reconstruction of the amplitudes and phases of the electric field strength from those intensity distributions has been developed. Recently predicted superscars have been identified experimentally and - using the well known analogy between the electric field strength and the quantum mechanical wave function in a two-dimensional microwave billiard - their properties determined. 
E. Bogomolny, B. Dietz, T. Friedrich, M. Miski-Oglu, A. Richter, F.   Schaefer, C. Schmit