Read e-book online Application of Holography and Hologram Interferometry to PDF

By Vlatko Brčić (auth.)

ISBN-10: 321181163X

ISBN-13: 9783211811634

ISBN-10: 3709126460

ISBN-13: 9783709126462

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Read or Download Application of Holography and Hologram Interferometry to Photoelasticity: Lectures Held at the Department for Mechanics of Deformable Bodies PDF

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Extra info for Application of Holography and Hologram Interferometry to Photoelasticity: Lectures Held at the Department for Mechanics of Deformable Bodies

Example text

This is accomplished when the photosensitive phate is caus ed to be exposed to both beams simultaneously. The work involved in creating the latent image of this modulus squared pattern may be described by a time integration of the divergence of the field of the complex Poyinting vector associated with the posed field AT c£, t) , supe~ at a given location in the emulsion, for the time duration of the exposure. Thus, when the exposed plate has been processed appropriatelly, the emulsion consists of a three-dimensional mapping of the mutual interference pattern characteristic of ATc£,t) This recorded pattern is the ho- logram.

20 m, and properly isolated from vibrations has to be used. In the paper by Fourney[l~the following recomandations to the practical achievement have been given: (1) The path lengths of the refernce and object beams should be made approximately equal so that the spatial coherence of two beams will be maintain ed. (2) The intensities of the two beams to be made approximately equal at the photographic plate so that the density gradients of the recorded interference pattern will be maximized. (3) The angle between the two beams at the holographic plate be made as small as possible.

2] E. Leith and L. Upatknies: Jnl. Opt. Soc. , 52, 1123, 1963. N. Leith, A. Kozma, J. Upatknies, J. Marks, and N. Massey, "Holographic Data Storage in Three-Dimensional Media", Appl. Optics, Vol. 5, 1303, August, 1966. W. Stroke, "An Introduction to Coherent Optics and Halo graphy", Academic Press, New York-London, 1966. [5] [6] Mme Pauthier-Camier, "L'Holographie", Rev. Franc. , 26, 89-95, 1968. L. A. Opt. Soc. , 55 (12), [1] 1593, Dec. 1965. A. Stetson and R. L. Powell, "Interferometric Hologram Evaluation and Real-Time Vibration Analysis of Diffuse Objects", J.

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Application of Holography and Hologram Interferometry to Photoelasticity: Lectures Held at the Department for Mechanics of Deformable Bodies by Vlatko Brčić (auth.)


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