Polymer dye lasers with exceptional performance

Influence of solvent on the physical and lasing properties of dye-doped sol–gel host

“…The main drawbacks of the organic dye materials, more than the thermal stability, are related to their photostability and efficiency, which are determined by the host nature and physico-chemical interactions with the dye. In order to overcome the drawbacks, great number of research works have been performed on the synthesis of highly photostable lasers and host media such as polymers or ormosils [11][12][13][14], but transmittance of most polymeric hosts in the UV region is commonly very low for their application in UV and blue bands. Moreover, polymer hosts have been shown to be lacking in mechanical, thermal properties and refractive index [15].…”