Energy and spectral characteristics of the dye generation in liquid droplet form with the nanoparticles

The results of spectral and energy characteristics investigation of the rhodamine 6G dye fluorescence in the liquid droplet form with the suspended particles of TiO₂ are given. It is shown that the nanoparticles availability in drops with the dye results in a double decrease of the generation threshold on the "whispering gallery" modes. Studying these effects is of great interest in the view of solving problems of aero-optics, particularly, lidar diagnostics of organic and biological admixtures in atmospheric aerosols according to the laser-induced fluorescence. The given paper is aimed to investigate the fluorescence of dyes solutions in liquid droplet form with nanoparticles of TiO₂ nanoparticles were kept up in suspended state in 6G rhodamine dye solution in dibutylphthalate due to Brownian motion. Thus, nonmetallic nanoparticles of TiO₂ availability in the liquid droplet solution of 6G rhodamine results in a considerable decrease of the generation threshold on modes of "whispering gallery".