A simple technique has been developed that increases the power output of a conventional flashlamp pumped dye laser by typically one order of magnitude and, for some dyes, much more. This is achieved by igniting a low-energy prepulse discharge through the flashlamp just prior to firing the main flashlamp discharge.
Michael H. Ornstein and Vernon E. Derr, "Prepulse Enhancement of Flashlamp Pumped Dye Laser," Appl. Opt. 13, 2100-2104 (1974)