The folder 'V-groove_interferometric_measurement' contains one .h5 measurement file which contains the raw data from the measurement
of the silicon V-groove structure related to the results shown in figures 4 and 6. 

In order to read the data i.e. in python they need to be reshaped to the correct order. The dataset name in the h5-file is 'Images'.
Below an example for a python code is given:

    import h5py
    
    Images=h5py.File('filename','r')
    data=Images.get('Images')[()]
    data = data.reshape(len(data[0,0,:]),len(data[0,:,0]), len(data[:,0,0]))
    data= data[:,:,:]