Liquid Lasers (Dye Lasers)

The liquid lasers are those in which the active medium consists of solutions of certain organic dye compounds in liquid solvents such as ethyl alcohol, methyl alcohol, or water.

Due to their wavelength tunability, wide spectral coverage, and the possibility of generating very short pulses, organic dye lasers have found an important role in various fields. In particular, these lasers are widely used in scientific applications. Other applications include the biometrical field (e.g., retinal treatment or photodynamic therapy) and applications in the field of laser photochemistry.