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Simplified optical system for holographic subtraction

Hariharan, P and Ramprasad, BS (1972) Simplified optical system for holographic subtraction. In: Journal of Physics E: Scientific Instruments, 5 (10). pp. 976-978.

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Official URL: http://iopscience.iop.org/0022-3735/5/10/013


Subtraction of one complex spatial function from another can be accomplished holographically by shifting the phase of the reference beam by pi between the two exposures. A simple and reliable system for this purpose, which makes use of the fact that the beam from a gas laser is usually plane-polarized, is described, and its application to obtain the equivalent of a dark field with the frozen-fringe technique in holographic interferometry is demonstrated.

Item Type: Journal Article
Publication: Journal of Physics E: Scientific Instruments
Publisher: Institute of Physics
Additional Information: Copyright of this article belongs to Institute of Physics.
Department/Centre: Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 22 Jun 2010 08:47
Last Modified: 22 Oct 2018 15:04
URI: http://eprints.iisc.ac.in/id/eprint/28597

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