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Computer Optics, 2017, Volume 41, Issue 5, Pages 670–679 (Mi co436)  

OPTO-IT

Measurement of the optical thickness of a layered object from interference colors in white-light microscopy

A. A. Dyachenkoab, V. P. Ryabukhoab

a Saratov State University, Saratov, Russia
b Institute of Precision Mechanics and Control, Russian Academy of Sciences, Saratov, Russia

Abstract: Regular features in generating coloured interference patterns from single-layer thin objects in polychromatic optical microscopy are considered. Expressions for the intensity distribution of the image interference fields are obtained with due account for the spectral properties of radiation. The proposed algorithm for computer-aided calculation and generation of coloured interference patterns in white light depending on the optical thickness of the layered object is based on a RGB colour model. Numerically simulated interference patterns are presented and changes in their colour and structure under varying parameters of the microscope optical scheme and object optical properties are discussed. We show that it is possible to determine the optical thickness of the object layer through the numerical comparison of interference colours obtained in the natural and numerical experiments.

Keywords: interference microscopy, interference images, coherence, interference color, digital image processing, thin films.

Funding Agency Grant Number
Russian Science Foundation 16-19-10528
This research was funded by the grant of the Russian Science Foundation (project 16-19-10528).


DOI: https://doi.org/10.18287/2412-6179-2017-41-5-670-679

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Full text: http://www.computeroptics.smr.ru/.../410509.html
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Received: 07.06.2017
Accepted:05.07.2017

Citation: A. A. Dyachenko, V. P. Ryabukho, “Measurement of the optical thickness of a layered object from interference colors in white-light microscopy”, Computer Optics, 41:5 (2017), 670–679

Citation in format AMSBIB
\Bibitem{DyaRya17}
\by A.~A.~Dyachenko, V.~P.~Ryabukho
\paper Measurement of the optical thickness of a layered object from interference colors in white-light microscopy
\jour Computer Optics
\yr 2017
\vol 41
\issue 5
\pages 670--679
\mathnet{http://mi.mathnet.ru/co436}
\crossref{https://doi.org/10.18287/2412-6179-2017-41-5-670-679}


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