Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/74910
Title: Partially coherent image formation in Asymmetric illumination-based differential phase contrast (AIDPC) and phase-retrieval
Authors: Mehta, S.B.
Sheppard, C.J.R. 
Keywords: AIDPC
Oblique illumination
Partially coherent imaging
Phase-retrieval
Phase-space imager
Quantitative phase imaging
Issue Date: 2010
Source: Mehta, S.B.,Sheppard, C.J.R. (2010). Partially coherent image formation in Asymmetric illumination-based differential phase contrast (AIDPC) and phase-retrieval. AIP Conference Proceedings 1236 : 289-294. ScholarBank@NUS Repository.
Abstract: Differential phase contrast (DPC) was first proposed in scanning electron and optical microscopy to image gradient of the specimen's optical path length. We introduced AIDPC as an oblique illumination-based partially coherent imaging method which is a full-field equivalent of the scanning DPC system. We described imaging with AIDPC assuming a slowly varying specimen. Recently, we have developed an accurate paraxial phase-space model, termed phase-space imager (PSI), for describing image formation in a general partially coherent system. In this paper, we use PSI to compute partially coherent images of a general 2D specimen. We also simulate phase-retrieval process with AIDPC. These accurate simulated results, presented for the fist time, provide evaluation of the key steps involved in phase-retrieval using AIDPC. © 2010 American Institute of Physics.
Source Title: AIP Conference Proceedings
URI: http://scholarbank.nus.edu.sg/handle/10635/74910
ISBN: 9780735407831
ISSN: 0094243X
Appears in Collections:Staff Publications

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