Looks like there's a proof of concept, at least for something really light for a very short distance. The longest distance is 127 meters, according to this art

Looks like there's a proof of concept, at least for something really light for a very short distance. The longest distance is 127 meters, according to this article: http://www.technologyreview.com/view/420700/microwave-powered-rocket-ascends-without-fuel/ http://www.technologyreview.com/view/420700/microwave-powere...