Atomic scale displacements detected by optical image cross-correlation analysis and 3d printed marker arrays

TechnicalRemarks: Overview of the folder structure:

• These folders contain the actual optical images we took and that are the basis of our image cross-correlation (nomenclature is as in the paper):

Sample1 - Copper Sample2 - Gold grains Sample3 - Array 1 Sample4 - Array 1 coated Sample5 - Array 2 coated Computer generated data

each of these folders contains two subfolders 'drift' and 'step' containing the data referring to the drift measurement and the step-function measurement depicted in Fig.5 of the paper. The folder 'Comuter generated data' additionally contains a folder 'supplementary figureS1 data', which contains the data for said figure. The specific parameters are mentioned in the folder name (see numbers behind 'sig_x' and 'amplitude')

• These folders contain the matlab scripts needed to perform the image cross-correlation and create the computer generated data.

Matlab scripts Digital Image Correlation

• These folders contain .stl files of the printed marker arrays

Fabrication