Laser Spectra and Efficiencies of Pyrazolo Derivatives of Coumarins

Abstract

Of the new laser dyes of coumarin series reported earlier, pyrazolo derivatives have been further studied. The paper reports their laser spectra and efficiencies in various solvents compared to a standard coumarin laser dye C₅₁₅. One of the derivatives shows comparable output under optimum concentration conditions as compared to the standard.