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Imaging with oriented photographic diffusers

Kumar, Senthil A and Vasu, RM (1989) Imaging with oriented photographic diffusers. In: Optics Communications, 70 (2). pp. 77-81.

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Official URL: http://dx.doi.org/10.1016/0030-4018(89)90272-1

Abstract

We analyse the imaging property of an oriented photographic diffuser which is the record of an elongated speckle pattern. It is found that the contrast transfer, when gratings are imaged through the slits in the diffuser, is considerably higher compared to imaging through a circular pinhole of comparable dimensions. We use the diffuser to produce high frequency gratings through multiple imaging a low frequency grating. The grating is used to demonstrate optical image subtraction.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier science.
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation and Applied Physics (Formally ISU)
Date Deposited: 27 Aug 2010 08:23
Last Modified: 19 Sep 2010 06:15
URI: http://eprints.iisc.ernet.in/id/eprint/31569

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