a Department of Physics, Chaudhary Devi Lal University, Sirsa-125055, Haryana, India b Department of Physics, M.D. University, Rohtak 124001, India c Department of Physics, P.G. Hindu College, Sonepat 131001, India
Abstract:
Time resolved spectroscopy is discussed along with the theoretical and experimental methods used to measure the fluorescence lifetimes in various laser grade organic dyes. The role of solvents and their viscosities in the fluorescence life time is also discussed. Different photophysical parameters have been obtained in rigid and non-rigid dye molecules.