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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202104054
|2 doi
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|a pubmed24n1106.xml
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|a eng
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|a Dalloz, Nicolas
|e verfasserin
|4 aut
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| 245 |
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|a Anti-Counterfeiting White Light Printed Image Multiplexing by Fast Nanosecond Laser Processing
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|c 2022
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 13.01.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 Wiley-VCH GmbH.
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|a Passive plasmonic metasurfaces enable image multiplexing by displaying different images when altering the conditions of observation. Under white light, three-image multiplexing with polarization-selective switching has been recently demonstrated using femtosecond-laser-processed random plasmonic metasurfaces. Here, the implementation of image multiplexing is extended, thanks to a color-search algorithm, to various observation modes compatible with naked-eye observation under incoherent white light and to four-image multiplexing under polarized light. The laser-processed random plasmonic metasurfaces enabling image multiplexing exhibit self-organized patterns that can diffract light or induce dichroism through hybridization between the localized surface plasmon resonance of metallic nanoparticles and a lattice resonance. Improved spatial resolution makes the image quality compatible with commercial use in secured documents as well as the processing time and cost thanks to the use of a nanosecond laser. This high-speed and flexible laser process, based on energy-efficient nanoparticle reshaping and self-organization, produces centimeter-scale customized tamper-proof images at low cost, which can serve as overt security features
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|a Journal Article
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|a laser processing
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|a metasurfaces
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|a nanophotonics
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|a security printing
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|a Le, Van Doan
|e verfasserin
|4 aut
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|a Hebert, Mathieu
|e verfasserin
|4 aut
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|a Eles, Balint
|e verfasserin
|4 aut
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|a Flores Figueroa, Manuel A
|e verfasserin
|4 aut
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| 700 |
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|a Hubert, Christophe
|e verfasserin
|4 aut
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| 700 |
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|a Ma, Hongfeng
|e verfasserin
|4 aut
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| 700 |
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|a Sharma, Nipun
|e verfasserin
|4 aut
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| 700 |
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|a Vocanson, Francis
|e verfasserin
|4 aut
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| 700 |
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|a Ayala, Stéphane
|e verfasserin
|4 aut
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| 700 |
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|a Destouches, Nathalie
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 2 vom: 14. Jan., Seite e2104054
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|g volume:34
|g year:2022
|g number:2
|g day:14
|g month:01
|g pages:e2104054
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|u http://dx.doi.org/10.1002/adma.202104054
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