http://www.photonics.com/content/news/2007/February/8/86331.aspx
Light Changed to Matter, Then Stopped and Moved CAMBRIDGE, Mass., Feb. 8, 2007 -- By converting light into matter and then back again, physicists have for the first time stopped a light pulse and then restarted it a small distance away. This "quantum mechanical magic trick" provides unprecedented control over light and could have applications in fiber-optic communication and quantum information processing. <more>
