Matches in SemOpenAlex for { <https://semopenalex.org/work/W2892046457> ?p ?o ?g. }
Showing items 1 to 86 of
86
with 100 items per page.
- W2892046457 endingPage "335" @default.
- W2892046457 startingPage "328" @default.
- W2892046457 abstract "This paper describes recent advances in laser direct writing of tamper-proof holographic structures on metal surfaces for preventing counterfeiting of high-value metal products, e.g. luxury watches, medical tools and implants, collectible coins, etc. Each of these holographic structures consists of an array of optically-smooth craters arranged in such a way to generate diffractive images comprising, e.g. a company logo and/or a string of alphanumeric characters, providing a unique method for the traceability of genuine products. The craters are less than 10 μm across and less than 500 nm deep. They are generated on metals by UV nanosecond laser pulses (355 nm wavelength and 35 ns pulse duration) that lead to localized melting and evaporation of the material. This paper demonstrates various methods for combining the holographic structures with standard marking patterns, such as QR codes and Data Matrices, in order to form aesthetic holographic markings concealing secret messages about the products. By merging a few holographic patterns together it is also possible to generate so called “holographic watermarks”. Finally, this article describes a few approaches for making the holographic structures particularly difficult to replicate and counterfeit. This includes the generation of multi-level holograms as well as the formation of optically-smooth protrusions (bumps) in selected places within the holographic structures in order to create hidden identifiers and/or miniature signatures which cannot be detected by the naked eye." @default.
- W2892046457 created "2018-09-27" @default.
- W2892046457 creator A5017073654 @default.
- W2892046457 creator A5020058656 @default.
- W2892046457 creator A5020665370 @default.
- W2892046457 creator A5060085295 @default.
- W2892046457 date "2019-02-01" @default.
- W2892046457 modified "2023-10-03" @default.
- W2892046457 title "Holographic watermarks and steganographic markings for combating the counterfeiting practices of high-value metal products" @default.
- W2892046457 cites W1966578279 @default.
- W2892046457 cites W2023652141 @default.
- W2892046457 cites W2051593024 @default.
- W2892046457 cites W2056393617 @default.
- W2892046457 cites W2075974512 @default.
- W2892046457 cites W2077524771 @default.
- W2892046457 cites W2077679436 @default.
- W2892046457 cites W2080449412 @default.
- W2892046457 cites W2085305049 @default.
- W2892046457 cites W2089223198 @default.
- W2892046457 cites W2150524543 @default.
- W2892046457 cites W2415720564 @default.
- W2892046457 cites W2702715228 @default.
- W2892046457 cites W4248961045 @default.
- W2892046457 doi "https://doi.org/10.1016/j.jmatprotec.2018.09.020" @default.
- W2892046457 hasPublicationYear "2019" @default.
- W2892046457 type Work @default.
- W2892046457 sameAs 2892046457 @default.
- W2892046457 citedByCount "13" @default.
- W2892046457 countsByYear W28920464572020 @default.
- W2892046457 countsByYear W28920464572021 @default.
- W2892046457 countsByYear W28920464572022 @default.
- W2892046457 crossrefType "journal-article" @default.
- W2892046457 hasAuthorship W2892046457A5017073654 @default.
- W2892046457 hasAuthorship W2892046457A5020058656 @default.
- W2892046457 hasAuthorship W2892046457A5020665370 @default.
- W2892046457 hasAuthorship W2892046457A5060085295 @default.
- W2892046457 hasBestOaLocation W28920464571 @default.
- W2892046457 hasConcept C120665830 @default.
- W2892046457 hasConcept C121332964 @default.
- W2892046457 hasConcept C121684516 @default.
- W2892046457 hasConcept C154945302 @default.
- W2892046457 hasConcept C166957645 @default.
- W2892046457 hasConcept C187590223 @default.
- W2892046457 hasConcept C192562407 @default.
- W2892046457 hasConcept C199360897 @default.
- W2892046457 hasConcept C2779356469 @default.
- W2892046457 hasConcept C2781003394 @default.
- W2892046457 hasConcept C41008148 @default.
- W2892046457 hasConcept C49040817 @default.
- W2892046457 hasConcept C520434653 @default.
- W2892046457 hasConcept C95457728 @default.
- W2892046457 hasConceptScore W2892046457C120665830 @default.
- W2892046457 hasConceptScore W2892046457C121332964 @default.
- W2892046457 hasConceptScore W2892046457C121684516 @default.
- W2892046457 hasConceptScore W2892046457C154945302 @default.
- W2892046457 hasConceptScore W2892046457C166957645 @default.
- W2892046457 hasConceptScore W2892046457C187590223 @default.
- W2892046457 hasConceptScore W2892046457C192562407 @default.
- W2892046457 hasConceptScore W2892046457C199360897 @default.
- W2892046457 hasConceptScore W2892046457C2779356469 @default.
- W2892046457 hasConceptScore W2892046457C2781003394 @default.
- W2892046457 hasConceptScore W2892046457C41008148 @default.
- W2892046457 hasConceptScore W2892046457C49040817 @default.
- W2892046457 hasConceptScore W2892046457C520434653 @default.
- W2892046457 hasConceptScore W2892046457C95457728 @default.
- W2892046457 hasFunder F4320334627 @default.
- W2892046457 hasLocation W28920464571 @default.
- W2892046457 hasOpenAccess W2892046457 @default.
- W2892046457 hasPrimaryLocation W28920464571 @default.
- W2892046457 hasRelatedWork W1481349141 @default.
- W2892046457 hasRelatedWork W155508120 @default.
- W2892046457 hasRelatedWork W1963522089 @default.
- W2892046457 hasRelatedWork W1979577507 @default.
- W2892046457 hasRelatedWork W1997669137 @default.
- W2892046457 hasRelatedWork W2023933701 @default.
- W2892046457 hasRelatedWork W2376743691 @default.
- W2892046457 hasRelatedWork W2892046457 @default.
- W2892046457 hasRelatedWork W2899084033 @default.
- W2892046457 hasRelatedWork W343103930 @default.
- W2892046457 hasVolume "264" @default.
- W2892046457 isParatext "false" @default.
- W2892046457 isRetracted "false" @default.
- W2892046457 magId "2892046457" @default.
- W2892046457 workType "article" @default.