Anti-Stokes Fluorescence
Anti-Stokes Fluorescence
Designfax, July, 2000
While conventional wisdom holds that laser light on an object will cause the object to heat, research at Los Alamos has demonstrated that cooling can occur under certain circumstances. Optical cooling, based on a principle known as anti-Stokes fluorescence, occurs when the amount of energy emitted by a solid, exposed to an energy source, is more than the energy it absorbs.
In one device, the Los Alamos Solid-State Optical Refrigerator, a 1.6W laser cools ytterbium-doped fluoride glass a total of 97[degrees]F, starting from room temperature. Self-contained prototype LASSORs are now under construction with diode lasers packing 10 times the power of the test configuration
anti laser detector