Research and development of dye lasers

The development and testing of dye lasers with narrowband emission and tunable wavelength is reported. The main results are repetitively pulsed flashlamp-pumped dye lasers capable of output powers from 20 to 200 kW in the spectral range between 430 and 760 nm. Their emission lines are spectrally narrowed to less than 0.002 nm and tuned by low-loss interference filters and Fabry-Perot etalons. CW-dye lasers were also developed and the feasibility of pumping a CW-dye laser by incoherent sources was studied. The lasers proved to be highly useful instruments in spectroscopic and holographic applications and efficient pumping sources for frequency conversion by nonlinear effects.