Distributed feedback dye laser: a simple instrument for measurement of refractive index of laser media

摘要

Abstract: It is shown that distributed feedback (DFB) dye laser may be efficiently employed for measurement of the refractive index of liquid and solid laser materials. Spectral and temperature dependencies of refractive index of dye laser solutions, polymer matrices and micro-porous quartz samples doped with dye are investigated. The change of refractive index of the sample was determined by the wavelength shift of DFB dye laser. A home-made DFB dye lasers with liquid and solid active media tunable in a wide spectral range (400 nm - 760 nm) were used in the experiments.!9