Comment A better explanation (Score 2, Informative) 122
Amazing! A friend of mine has done his Ph.D. in exactly this field. He was shining a beam of light right THROUGH an opaque sheet of material (paper, I think) already a few years ago, and published about it in 2008. I think it's pretty much the same idea, from what I understand of it (but keep in mind, I chose the evil path of Business instead of Science, so I have no brain).
Anyway; on his page there's a much better explanation, with cute pictures and all that, of the same idea.