Self-doubled laser emission in an organic system A. Barsella, F. May, J.-P. Vola, A. Fort, S. Sanaur, A.-J. Attias, M. Lefebvre and E. Rosencher Ann. Phys. Fr., 32 2-3 (2007) 55-58 Published online: 23 May 2008 DOI: 10.1051/anphys:2008006