Dataset: Thermal noise calibration of functionalized cantilevers for force microscopy: effects of the colloidal probe position.

Dataset for article "Thermal noise calibration of functionalized cantilevers for force microscopy: effects of the colloidal probe position"
The raw data is in the 6 zip files (AIO*.zip), which contains thermal noise spectra measured on the raw cantilevers close to the free end (folders AIO#, where #=1, 2 or 3 for samples A, B or C), or on the loaded cantilever at various positions along its length (folders AIO#-ScanHF, where #=1, 2 or 3 for samples A, B or C). The file format is Matlab data file (.mat), it include the vectors f (for frequency axis, in Hz) and p (power spectrum density, in m^2/Hz). Other variables are erreur (some internal check that the calibration of the interferometer is pertinent) and PointW (mean intensity collected by the interferometer, and mean contrast on the 2 quadrature signals). For the loaded cantilever, we also record the laser spot position (XFaisceau and YFaisceau, in µm, origin close to the free end on the cantilever), some timing information to track for drifts, and ellipse (a calibration step of the quadrature phase interferometer).
The SEM images of the samples are included in the zip file SEMimages.zip
All analysis scripts (Matlab .m files) are included:

AnalyseAll.m reads the raw data files and extract all the pertinent information, saving it to file AnalyseAll.mat
Analysis_cp analyses the pre-processed data with the single contact point model
Analysis_endload analyses the pre-processed data with the rigid end load model
figspectrum.m creates Fig. 4 of the article
plot_cp_endload.m creates Fig. 5 and 6 of the article
All other scripts (.m) are dependencies that are necessary for the 3 former scripts to run. All scripts are commented and should be self explanatory. Of interest are the scripts mode_shape_cp.m and mode_shape_endload.m, which compute the resonant mode shape of a loaded cantilever for the two models, when given the parameters on the load size and position.