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Optica Publishing Group
  • Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing
  • OSA Technical Digest (Optica Publishing Group, 2004),
  • paper DSuA6
  • https://doi.org/10.1364/DOMO.2004.DSuA6

Synthetical diffractive elements for security applications realized on enhanced integral dot-matrix system

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Abstract

Several methods of security enhancement of diffractive elements for security applications are presented, namely high carrier frequency cryptograms, Fresnel multi-focal cryptograms, and noise covered elements are introduced. Designed structures are realized on special integral dot-matrix system.

© 2004 Optical Society of America

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