US researchers have developed an 'antilaser' device which is capable of
trapping light waves and instead of flashing bright beams, extinguish specific
wavelengths of light. The real world application of this device would probably
be in the next-generation optical computers that will be powered by light in
addition to electrons. This technology could also be used in radiology.
A laser emits light in a very narrow frequency range by taking in electrical
energy. While the antilaser takes in laser light and transforms it into heat
energy. This laser light could also be transformed into electrical energy.
The device uses silicon as an absorbent that traps light waves
which bounce around till they are converted into heat. However the antilaser
cannot be used as a laser shield. Researcher A. Douglas of the Yale University
said, "It's a device which basically works like running a laser backwards."