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Optical security elements based on waveguide effects

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F15%3A00444540" target="_blank" >RIV/61389021:_____/15:00444540 - isvavai.cz</a>

  • Alternative codes found

    RIV/68407700:21340/15:00309265

  • Result on the web

    <a href="http://dx.doi.org/10.1117/12.2175918" target="_blank" >http://dx.doi.org/10.1117/12.2175918</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1117/12.2175918" target="_blank" >10.1117/12.2175918</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Optical security elements based on waveguide effects

  • Original language description

    Optical document security represents an important field of application of analogue and synthetic diffractive structures.Most of the security elements are based on visual effects formed by diffraction on a structure with the details in the order of hundreds of nanometers.However,to improve the anti-counterfeiting properties of these structures, various types of hidden features are included within the area of the security elements.They are not visible under normal lighting but it is possible to easily reveal the hidden information under specially-defined geometry and/or type of illumination.In this paper, theory and application of a novel type of hidden diffractive security element are presented.It combines standard visual properties of synthetic holograms with waveguide effects.The hidden information is recorded using a special grating,which is not visible under normal observation geometry.The encoded image can be reconstructed only when the proper guided mode appears in a substrate.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JA - Electronics and optoelectronics

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2015

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Proceedings of SPIE Vol. 9442: Optics and Measurement Conference 2014

  • ISBN

    978-1-62841-557-5

  • ISSN

    0277-786X

  • e-ISSN

  • Number of pages

    11

  • Pages from-to

    944214-944214

  • Publisher name

    SPIE-INT SOC OPTICAL ENGINEERING

  • Place of publication

    Bellingham

  • Event location

    Liberec

  • Event date

    Oct 7, 2014

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000349403500039