Exciton-mediated photothermal cooling in GaAs membranes. Xuereb, A., Usami, K., Naesby, A., Polzik, E., S., & Hammerer, K. New Journal of Physics, 14(8):085024, 8, 2012.
Exciton-mediated photothermal cooling in GaAs membranes [pdf]Paper  Exciton-mediated photothermal cooling in GaAs membranes [link]Website  abstract   bibtex   
Cooling of the mechanical motion of a GaAs nano-membrane using the photothermal effect mediated by excitons was recently demonstrated by some of the authors (Usami et al 2012 Nature Phys. 8 168) and provides a clear example of the use of thermal forces to cool down mechanical motion. Here, we report on a single-free-parameter theoretical model to explain the results of this experiment which matches the experimental data remarkably well.

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