What is the importance of fluorescence in the generation of laser?
Laser out put can be generated only from those laser materials, which show the property of fluorescence and laser action is possible only at that wavelength, where the fluorescence emission occurs. Scientists examine the energy levels spectroscopically to find fluorescence and evaluate the fluorescence efficiency of the new laser active media. In fluorescence, the emitted wavelengths are always longer than the absorbed wave lengths and emission stops the moment the excitation of the material stops.
