Aperture synthesis for hologram protection against optical copying

Yury N. Vigovsky; Nataly Yu. Vigovskaya; Alexander N. Malov

doi:10.1117/12.518227

26 September 2003 Aperture synthesis for hologram protection against optical copying

Yury N. Vigovsky, Nataly Yu. Vigovskaya, Alexander N. Malov

Author Affiliations +

Proceedings Volume 5134, Current Research on Holography and Interferometric Methods for Measurement of Object Properties: 2000-2002; (2003) https://doi.org/10.1117/12.518227
Event: Holography and Interferometric Methods for Measurement of Object Properties: 2000-2002, 2000, Unknown, United States

Abstract

It is offered to use the methods of the optical superresolution based on the redistibution of spatial, temporal and polarization degrees of freedom of the optical image conception for the holograms protection against a falcification. On an example of optical synthesis of the aperture (OSA) at recording of the Fourier holograms the principles and possibilities superresolving methods of coding are discussed. The peculiarities of the method OSA associated with appearances of the self-image of periodic coherent fields (Talbot's effect) are considered.

Citation Download Citation

Yury N. Vigovsky, Nataly Yu. Vigovskaya, and Alexander N. Malov "Aperture synthesis for hologram protection against optical copying", Proc. SPIE 5134, Current Research on Holography and Interferometric Methods for Measurement of Object Properties: 2000-2002, (26 September 2003); https://doi.org/10.1117/12.518227

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