Patent ID: 9097518
Filing Date: 2015-08-04
Classification: G01B,G02B

Abstract:
1. A method for determining roughness data, topography data or both roughness data and topography data of surfaces in material microscopy based on a shearing polarization interferometrical sequence with a microscopic “TIC” module (“Total Interference Contrast Module”) of a microscope: wherein the method is carried out either polychromatically or monochromatically; and the method comprising the steps of: generating at least two tilted wave fronts, which after reflection from or transmission through a sample generate two images of said sample in the form of fringe patterns, said images being offset relative to one another and interfering with one another; determining roughness values and height topographies of a surface of the sample by application of image evaluation; and defining a reference beforehand to perform a center evaluation of individual line profiles with direct determination of height topographies.