Abstract
Photophysical characteristics such as absorption, fluorescence spectra, stokes' shift, fluorescence quantum yield and amplified spontaneous emission (ASE) of a new chalcone laser dye material 1-(4-chlorophenyl)-3-(4- N, N dimethylamino phenyl)-2-propen-1-one (CPDAPP) were measured in different solvents and concentrations. Here, the ASE spectra of CPDAPP in acetone have been obtained using a transverse cavity configuration where the conjugated CPDAPP was pumped by laser pulses from the third harmonic of Nd: YAG laser (355 nm). The CPDAPP in acetone produces high intense ASE. The obtained results were compared with the 3-(4-(dimethylamino) phenyl)-1-phenyl-(2E)-propen-1-one (DMAPPP) under identical operational conditions.