http://www.vidmax.com/index.php/videos/view/518
95 GHz heats up water and a bunch of other molecules in air (acts as a perfect load) which makes it dissapate faster.
The US is really going through an all-optical-warfare, after seeing designing high powered lasers to shoot down planes. I got a chance to talk to a researcher with Schafer about their projects with the US DOD, they have some real star wars like weaponary in the R&D.