Proceedings ArticleDOI
Coded Imaging By Self-Imaging Structures (SIS) And Applications
S. C. Som,A. Satpathi +1 more
- Vol. 954, pp 110-120
TLDR
In this paper, the concept of reverse shadow magnification has been introduced, and the most important result is that full object information may be encoded in the self-images by changing this magnification.Abstract:
The self-imaging property of the SIS has been utilized for transferring information from extended objects placed at certain distances from the SIS to its self-image planes. The concept of 'reverse shadow magnification' has been introduced, and the most important result is that full object information may be encoded in the self-images by changing this magnification. Typical computed and experimental results for incoherently illuminated objects have been presented in support of some of the conclusions. A simple illustrative application has also been described.read more
Citations
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Journal ArticleDOI
The Generalised Lau Effect
S. C. Som,A. Satpathi +1 more
TL;DR: In this article, it was shown that the process of coded imaging of incoherently illuminated extended objects by self-imaging structures (SIS) naturally leads to the formation of Lau-type fringes at finite conjugates.
References
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Journal ArticleDOI
Effects of Spatial Coherence on Fourier Imaging of a Periodic Object
TL;DR: In this article, the formation and contrast of Fourier images of a periodic object, especially a sinusoidally transparent object, are investigated under partially coherent illumination, and it becomes apparent that the spatial coherence of light affects seriously the contrast and positions of the Fourier image planes.