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AssigneeThe Board of Trustees of the Leland Stamford Junior University
InventorsSteven Chu, Vladan Vuletic
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The invention relates to a method and apparatus for cooling multilevel entities such as atoms, ions or molecules as well as entities with no apparent internal structure. Cooling is achieved by coherent scattering, where the frequency of the emitted radiation exceeds the frequency of the illumination radiation. Such coherent scattering is achieved by placing the entities in a resonator containing in which the cavity length and mirror coating are selected to support a resonant radiation. The entities are illuminated with an illumination radiation whose energy is lower than that of the resonant radiation supported by the resonator by a certain detuning energy selected such that coherent scattering of resonant radiation from the entities at a higher frequency than that of the illumination radiation is promoted by the resonator. As a result of the coherent scattering energy is carried away from the entities and they are cooled.
A method for cooling entities by coherent scattering, said method comprising:
An apparatus for cooling entities by coherent scattering, said apparatus comprising:
A method for cooling a material in a resonant cavity, the method comprising scattering within the resonant cavity incident radiation from the material to produce scattered radiation, wherein the scattered radiation has frequency equal to a resonant frequency of the resonant cavity, and wherein the incident radiation has a frequency lower than the resonant frequency of the resonant cavity, thereby cooling the material.
Dependencies are inferred from the claim text.