This goes under the, "it's news to me category". In 2001 scientists were able to stop the forward travel of light and then make the light pulse reverse direction. It happened in 2001 according to this article. They used a chamber filled with some prepared Rubidium (Rb) vapor and a control laser used to excite the Rb in a certain way.

Bookmark/Search this post with:

delicious | digg | reddit | furl | technorati