Random laser tailored by directional stimulated emission

This work was supported by ERC Grant (FP7/2007-2013) No. 201766, CINECA, EU FP7 NoE Nanophotonics4Enery Grant No. 248855, the Spanish MICINN CSD2007-0046 (Nanolight.es), MAT2009-07841 (GLUSFA), and Comunidad de Madrid S2009/MAT-1756 (PHAMA).