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Tuesday, July 21, 2020 | History

2 edition of Zone plate encoded holography in the optical region found in the catalog.

Zone plate encoded holography in the optical region

Ian Keith Woodgate

Zone plate encoded holography in the optical region

by Ian Keith Woodgate

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  • 11 Currently reading

Published by University of Birmingham in Birmingham .
Written in English


Edition Notes

Thesis (Ph.D) - University of Birmingham, School of Physics and Space Research, Faculty of Science.

Statementby Ian Keith Woodgate.
ID Numbers
Open LibraryOL17200471M


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Zone plate encoded holography in the optical region by Ian Keith Woodgate Download PDF EPUB FB2

Abstract. Recent progress in the understanding of the neutron holographic process is summarized, together with some new experimental results. System limitations are identified and the results of a Monte Carlo simulation of the technique are by: 2. The hologram consists of superimposed shadows of the binary Gabor zone plate cast by IR sources.

The reconstruction is carried out by using Fast Fourier Transforms. The scaling produced by the zone plate encoded technique is indicated and a correction for this can be easily made using a computer. In this way, a true IR image in 3D can be : Yuji Shen, T.

Beynon. Unlike conventional optical holography which requires coherent radiation, zone plate coded holography (ZPCH) offers the possibility of encoding 3D information of an incoherent radiation source. But ZPCH with its coherent optical reconstruction (COR) is unsuitable to be used in the visible : Gajendra Singh Solanki, Sameer Nigam, Anurag Sharma, H.C.

Pant. The hologram consists of superimposed shadows of the binary Gabor zone plate cast by IR sources. The reconstruction is carried out by using Fast Fourier Transforms. The scaling produced by the zone plate encoded technique is indicated and a correction for this can be easily made using a computer.

In this way, a true IR image in 3D can be obtained. After graduating, he spent a year at the IBM Almaden Research Center where he worked with Glenn Sincerbox on problems related to optical data storage.

He then went to the University of Arizona and has continued to work on various types of optical systems with the main focus on holographic optical elements and holographic : Raymond K.

Kostuk. A series representation developed from holography theory is used to determine the image distances and relative image intensities for three types of zone plates. The effect of nonlinearity in film reproduction on the hologram of a point object and the images produced by this hologram are discussed.

Appl. Opt. The manuscript reviews the properties of holograms and zone plates. Discussions focus on holograms and coherent radar, single wavelength nature of holograms, image inversion, reconstruction with a small portion of a hologram, pseudoscopy in the real image of a hologram, zone plates as negative lenses, offset zone plates, and zone plates with.

The equipment needed is simple, but the three-dimensional images can be viewed one depth plane at a time in sequence, not directly as with coherent optical holograms. The 3-dimensional location of each point in an object can be encoded in the Mertz-Young (, ) two-step coded-aperture process by casting a shadow of a Fresnel zone plate onto a photographic plate.

The book then tackles wave diffraction, as well as diffraction by two and multiple slits, near field, multiple slit gratings and photographic gratings, refraction by prisms, dependence of diffraction on wavelength, and disks and zone plates. The manuscript reviews the Book Edition: 1.

The zone plate's focusing ability is an extension of the Arago spot phenomenon caused by diffraction from an opaque disc.

A zone plate consists of a set of radially symmetric rings, known as Fresnel zones, which alternate between opaque and transparent.

Light hitting the zone plate .