A miniature electron beam pumped laser C. Skrobol, T. Heindl, R. Krücken, A. Morozov, R. Steinhübl, J. Wieser and A. Ulrich Eur. Phys. J. D, 54 1 (2009) 103-109 Published online: 16 June 2009 DOI: 10.1140/epjd/e2009-00175-8