Influence of dyes doped in solid state polymeric matrices as spectral converters on efficiency of a flash-lamp pumped Nd:YAG laser

Organic dye materials doped in poly-methyl methacrylate matrix were used as spectral converters to increase the energy efficiency of a flash-lamp pumped Nd:YAG laser. In this process, the useless part of emitted spectrum from the pumping lamp is absorbed by dye molecules and, subsequently, re-emitted at longer wavelengths where the narrow absorption line of neodymium ion at about 580 nm can be used more efficiently. As a result, approximately 40% enhancement in energy efficiency was achieved.