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Multilevel computer-generated holograms for reconstructing 3-D images in combined optical-digital security devices

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dc.contributor.author Girnyk, V.I.
dc.contributor.author Kostyukevych, S.O.
dc.contributor.author Shepeliavyi, P.Ye.
dc.contributor.author Kononov, A.V.
dc.contributor.author Borisov, I.S.
dc.date.accessioned 2017-06-13T15:24:37Z
dc.date.available 2017-06-13T15:24:37Z
dc.date.issued 2002
dc.identifier.citation Multilevel computer-generated holograms for reconstructing 3-D images in combined optical-digital security devices / V.I. Girnyk, S.O. Kostyukevych, P.Ye. Shepeliavyi, A.V. Kononov, I.S. Borisov // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2002. — Т. 5, № 1. — С. 106-114. — Бібліогр.: 10 назв. — англ. uk_UA
dc.identifier.issn 1560-8034
dc.identifier.other PACS: 42.40.-i, 42.70.Ln
dc.identifier.uri http://dspace.nbuv.gov.ua/handle/123456789/121125
dc.description.abstract Computer-generated holograms (CGHs) integrated within combined optical-digital security devices (CO/DSDs) are described in this work. They can restore the monochrome and color 3D images in white light. To record them, the Electron Beam Lithography (EBL) is used. Our investigations on optimization of synthesis and recording the CO/DSDs with the integrated in it multilevel CGHs of 3D images possessed horizontal parallax only (HPO) are presented here. The CGH fabrication process is mainly composed of two parts: calculation of the interferogram data (ID) and their recording. Calculation of the ID is done as follows: firstly, the geometrical and optical constants of recording scheme and the object surface represented by the elemental self-radiating areas, are determined, secondly, the basic parameters accounting for discretization of ID in hologram plane is defined. The ID values can be derived by calculation of the necessary elemental object areas bipolar intensities sum. Next, over suitable quantization of ID, recording the rectangle data appropriate for EBL onto glass coated with non-organic photoresist based on As₄₀S₄₀Se₂₀ is performed. We have also investigated reciprocal influence of an optical part of the CO/DSD and a digital one. uk_UA
dc.language.iso en uk_UA
dc.publisher Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України uk_UA
dc.relation.ispartof Semiconductor Physics Quantum Electronics & Optoelectronics
dc.title Multilevel computer-generated holograms for reconstructing 3-D images in combined optical-digital security devices uk_UA
dc.type Article uk_UA
dc.status published earlier uk_UA


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