High-resolution dot-matrix hologram generation

Autor:	Dejan Pantelić, Boban Zarkov, Dušan Grujić
Rok vydání:	2012
Předmět:	Computer science business.industry Holography High resolution Metamaterial Condensed Matter Physics Atomic and Molecular Physics and Optics law.invention Counterfeit Optics law Dot matrix business Mathematical Physics
Zdroj:	Physica Scripta. :014021
ISSN:	1402-4896 0031-8949
Popis:	Holography is a technique that enables us to permanently record three-dimensional (3D) colour pictures. Owing to their sub-micron structure, holograms are remarkable safety devices that are very difficult to counterfeit. Dot-matrix technology, which is one of the commonly used methods, is a substantial obstacle to all types of fraudulent activities. This kind of hologram is mainly used for the purpose of protection against forgery of cheques, cards, passports, etc. Such a high-resolution technique also enables the engineering of 2D and 3D structures, potentially leading to the construction of metamaterials. In this paper, we describe high-resolution holographic structures obtained by dot-matrix devices of novel construction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b0afc71ce09e5dd1e2df52b3fdd3bec7 https://doi.org/10.1088/0031-8949/2012/t149/014021 Zobrazit plný text záznamu