Cooling a Rotating Mirror Coupled to a Single Laguerre-Gaussian Cavity Mode Using Parametric Interactions.

We study the cooling of a rotating mirror coupled to a Laguerre-Gaussian (L-G) cavity mode, which is assisted by an optical parametric amplifier (OPA). It is shown that the presence of the OPA can significantly lower the temperature of the rotating mirror, which is very critical in the application of quantum physics. We also find that the increase in angular momentum has an influence on the cooling of the rotating mirror. Our results may provide a potential application in the determination of the orbital angular momentum of light fields and precision measurement.