Stimulated emission of cresyl violet pumped by N2 laser or rhodamine 6G dye laser

Cresyl violet solutions have been shown to lase when pumped with a N2 laser or a rhodamine 6G dye laser. In the latter case the efficiency is much higher, and for appropriate solution concentrations the dye lases at the wavelength peak of its spontaneous emission. Under these conditions, the gain is so high that superradiance is obtained using only a 10−kW exciting pulse with 10% lasing efficiency.