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Computer Optics, 2016, Volume 40, Issue 6, Pages 772–780
DOI: https://doi.org/10.18287/2412-6179-2016-40-6-772-780
(Mi co327)
 

OPTO-IT

Defocus and numerical focusing in interference microscopy with wide time-varying spectrum of illumination field

A. A. Grebenyukab, V. P. Ryabukhoab

a Saratov State University, Saratov, Russia
b Institute of Precision Mechanics and Control of the Russian Academy of Sciences, Saratov, Russia
References:
Abstract: This paper presents an analysis of the influence of illumination with wide temporal spectrum on the properties of a defocused interference signal and numerically focused imaging in interference microscopy. It is shown that the differences in defocus influence on different spectral components of a signal with wide temporal spectrum may lead to degradation of the images of defocused sample parts, in spite of the use of numerical focusing. The magnitude of these effects depends on the temporal spectrum width, the numerical aperture of the imaging system and the amount of defocus. The influence of these effects on the properties of numerically focused imaging in Fourier domain optical coherence tomography/microscopy is considered.
Keywords: interference microscopy, optical coherence tomography, image reconstruction techniques, numerical focusing.
Funding agency Grant number
Russian Science Foundation 16-19-10528
This research was funded by a grant of the Russian Science Foundation (project No. 16-19-10528).
Received: 23.11.2016
Accepted: 06.12.2016
Document Type: Article
Language: Russian
Citation: A. A. Grebenyuk, V. P. Ryabukho, “Defocus and numerical focusing in interference microscopy with wide time-varying spectrum of illumination field”, Computer Optics, 40:6 (2016), 772–780
Citation in format AMSBIB
\Bibitem{GreRya16}
\by A.~A.~Grebenyuk, V.~P.~Ryabukho
\paper Defocus and numerical focusing in interference microscopy with wide time-varying spectrum of illumination field
\jour Computer Optics
\yr 2016
\vol 40
\issue 6
\pages 772--780
\mathnet{http://mi.mathnet.ru/co327}
\crossref{https://doi.org/10.18287/2412-6179-2016-40-6-772-780}
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