Please use this identifier to cite or link to this item:
|Title:||Partially coherent image formation in differential interference contrast (DIC) microscope||Authors:||Mehta, S.B.
|Issue Date:||24-Nov-2008||Citation:||Mehta, S.B., Sheppard, C.J.R. (2008-11-24). Partially coherent image formation in differential interference contrast (DIC) microscope. Optics Express 16 (24) : 19462-19479. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.16.019462||Abstract:||Some different image formation models have been proposed for Nomarski's differential interference contrast (DIC) microscope. However, the nature of coherence of illumination in DIC, of key importance in image formation, remains to be elucidated. We present a partially coherent image formation model for DIC and demonstrate that DIC microscope images the coherent difference of shifted replicas of the specimen; but imaging of the each component is partially coherent. Partially coherent transfer functions are presented for various DIC configurations. Plots of these transfer functions and experimental images provide quantitative comparison among various DIC configurations and elucidate their imaging properties. Approximations for weak or slowly varying specimens are also given. These improved models should be of great value in designing phase retrieval algorithms for DIC. © 2008 Optical Society of America.||Source Title:||Optics Express||URI:||http://scholarbank.nus.edu.sg/handle/10635/67212||ISSN:||10944087||DOI:||10.1364/OE.16.019462|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 15, 2020
WEB OF SCIENCETM
checked on Feb 6, 2020
checked on Feb 17, 2020
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.