Readme for dataset for: An analytical model for the detection of levitated nanoparticles in optomechanics Review of Scientific Instruments 89, 023109 (2018) https://doi.org/10.1063/1.5008396 A. T. M. Anishur Rahman(1,2,a), A. C. Frangeskou(2), P. F. Barker(1), and G. W. Morley(2) 1) Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom 2) Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom a) Electronic mail: a.rahman@ucl.ac.uk Open Access paper Published Online: February 2018 Accepted: January 2018 All data are provided in Matlab format because the ascii files are inconveniently large. Please see the paper for further explanation of measurement conditions. Figure 3b is not listed because it is just a zoom of Figure 3a. List of data provided: fig2a.mat fig2b.mat fig3a.mat fig4.mat