'Anti-laser' traps all incoming light - physics-math - 02 August 2010 - New Scientist

'Anti-laser' traps all incoming light - physics-math - 02 August 2010 - New Scientist: "Call it the anti-laser. Instead of amplifying light, it would soak it up completely, leaving utter darkness. A laser shines by producing a cascade of photons that bounce around inside a light-amplifying material before exiting from one end. A team at Yale University wondered what would happen if they could reverse the process, making the material absorb rather than emit a laser beam."