16 September 2014 Cavity cooling a trapped nanosphere in vacuum
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We describe recent experiments that have demonstrated cavity optomechanical cooling of the center-of-mass motion of nanospheres. The naturally charged silica spheres are levitated within vacuum using an overlapping optical and electrodynamical trap. Using this system we have cavity cooled trapped nano-spheres of radius 200nm from above room temperature to less than 10K in a vacuum of 10-4 mbar.
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P. F. Barker, P. F. Barker, J. Millen, J. Millen, P. G. Z. Fonseca, P. G. Z. Fonseca, T. Mavrogordatos, T. Mavrogordatos, T. S. Monteiro, T. S. Monteiro, } "Cavity cooling a trapped nanosphere in vacuum", Proc. SPIE 9164, Optical Trapping and Optical Micromanipulation XI, 916403 (16 September 2014); doi: 10.1117/12.2064393; https://doi.org/10.1117/12.2064393


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