I would venture to guess that the IR pulsed laser being used in that experimental 3D projection into atmosphere is likely a high power ND-YAG say 100 watts CW and a high speed Q-Switch ,say 50 kHz to provide nanosecond pulses capable of Ionizing the molecues in the atmosphere.
The same type of laser and techniques are used to create images within lead crystals. Micro focused energy creates micro fractures in the crystal latice.
The first experiments I heard to Ionize the atmosphere were using high power UV lasers to create a discharge path for dangerous storm clouds that are a hazard in Japan . Start fires at refineries, cause power blackouts when lightning hits the sky wire and CT's signal a power corridor shutdown and reroute.
Also heard of ionizing the atmosphere as a conduit to disable vehicles at a distance, potential military weapon.
Rick
Rick
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