Final amplifier of the Nike laser where laser beam energy is increased from 150 J to ~5 kJ by passing through a krypton/fluorine/argon gas mixture excited by irradiation with two opposing 670,000 volt electron beams.

The Nike laser at the United States Naval Research Laboratory in Washington, DC is a 56 beam, 4-5 kJ per pulse electron beam pumped krypton fluoride excimer laser which operates in the ultraviolet at 248 nm with pulsewidths of a few nanoseconds. Nike was completed in the late 1980s and is used for investigations into inertial confinement fusion. By using a KrF laser with induced spatial incoherence (ISI) optical smoothing, the modulations in the laser focal profile