Generation of laser radiation by nanostructured solid active elements based on nanoporous aluminum oxide films activated with rhodamine 6G

Abstract

The generation of laser radiation by a solid active element based on a nanoporous aluminum oxide film activated with rhodamine 6G has been obtained for the first time in the geometry to reflection. The lasing is characterized by high-quality radiation with the absence of a spontaneous component. It is found that the application of silicone oil as the immersion substance reduces the generation threshold more than two times. The optimal concentration of rhodamine 6G molecules in the impregnation solution for mirror films of nanoporous aluminum oxide is determined, at which the dye fluorescence intensity has the maximum value. The generation by a nanoporous aluminum oxide film activated with rhodamine 6G in the continuous mode has been obtained for the first time.