Amplified spontaneous emission in polymethyl methacrylate doped with 3-(1,1-dicyanoethenyl)-1-phenyl-4,5-dihydro-1H-pyrazole (DCNP)

► Amplified spontaneous emission in nonlinear optical dye doped system was shown. ► High temporal stability was observed. ► Very attractive material for nonlinear optics applications.