. "One of the important fields of application of synthetical diffractive structures is optical document security. Several methods of security enhancement if diffractive elements for security applications are presented, namely high carrier frequency cryptograms and noise covered elements are introduced. Structures are designed with respect to the fabrication on special enhanced integral dot-matrix system." . "computer generated hologram; cryptogram; dot matrix system; optical diffractive structure; security application"@en . "Synthetical Diffractive Elements for Security Applications Realized on Enhanced Integral Dot-matrix System" . "\u0160kere\u0148, Marek" . "One of the important fields of application of synthetical diffractive structures is optical document security. Several methods of security enhancement if diffractive elements for security applications are presented, namely high carrier frequency cryptograms and noise covered elements are introduced. Structures are designed with respect to the fabrication on special enhanced integral dot-matrix system."@en . "3"^^ . "Synthetical Diffractive Elements for Security Applications Realized on Enhanced Integral Dot-matrix System"@en . . "6"^^ . . "3"^^ . "27;32" . . "Nen\u00ED k dispozici"@cs . "Synthetical Diffractive Elements for Security Applications Realized on Enhanced Integral Dot-matrix System" . . "Richter, Ivan" . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "1" . . . . "Applied Optics" . "0003-6935" . . "45" . . . . . . "P(1H-PK/02), Z(MSM6840770022)" . "Synthetical Diffractive Elements for Security Applications Realized on Enhanced Integral Dot-matrix System"@en . . "RIV/68407700:21340/06:04117365!RIV07-MSM-21340___" . "Fiala, Pavel" . "502860" . "RIV/68407700:21340/06:04117365" . . "Nen\u00ED k dispozici"@cs . "21340" . . "[53D81D0596EB]" . . . . "Nen\u00ED k dispozici"@cs . .