Our paper has been published in the New Journal of Physics, which you can find here:

Dynamics of levitated nanospheres: towards the strong coupling regime

T. S. Monteiro, J. Millen, Florian Marquardt, G. A. T. Pender, D. Chang, P. F. Barker
New J. Phys. 15 015001(2013)

We made a video abstract, which you can view below: