We present a method determining thicknesses of thin polar liquids on rough surfaces. Results of the reproducibility of measurements of coatings down to the µm range, which is less than the surface roughness are shown.
© 2011 OSA
J. Lettner, "A Laser-Speckle Correlation Technique for Thickness Determination of Optically Thin Transparent Layers," in Frontiers in Optics 2011/Laser Science XXVII, OSA Technical Digest (Optical Society of America, 2011), paper FThV2.
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