Scienceblogtwo

Researchers used mirrors and lenses to create a "light trap" around a small layer in which the light beam is directed in a circle and then superimposed on itself, precisely in such a manner that the light beam blocks itself and is unable to exit the system. A "light trap" was created that keeps a light beam from escaping. This enables optimum light absorption. You must absorb light as completely as you can if you wish to use it effectively. Both photosynthesis and a photovoltaic system exhibit this. This is a challenge, though, if the absorption is to occur in a thin layer of material that typically allows most of the light to pass through. The ability to entirely absorb a beam of light even in the tiniest of layers has now been discovered thanks to an unexpected technique. Utilizing mirrors and lenses, they created a "light trap" surrounding the thin layer in which the light beam is directed in a circle before being overlaid on itself. This is done in suc...