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dc.contributor.author
Fu, Yangxi  
dc.contributor.author
Soldera, Marcos Maximiliano  
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Wang, Wei  
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Voisiat, Bogdan  
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Lasagni, Andrés Fabián  
dc.date.available
2021-12-03T02:07:35Z  
dc.date.issued
2019-10-18  
dc.identifier.citation
Fu, Yangxi; Soldera, Marcos Maximiliano; Wang, Wei; Voisiat, Bogdan; Lasagni, Andrés Fabián; Picosecond laser interference patterning of periodical micro architectures on metallic molds for hot embossing; Multidisciplinary Digital Publishing Institute; Materials; 12; 20; 18-10-2019; 1-16  
dc.identifier.uri
http://hdl.handle.net/11336/148018  
dc.description.abstract
In this work, it is demonstrated that direct laser interference patterning (DLIP) is a method capable of producing microtextured metallic molds for hot embossing processes. Three different metals (Cr, Ni, and Cu), relevant for the mold production used in nanoimprinting systems, are patterned by DLIP using a picosecond laser source emitting at a 532 nm wavelength. The results show that the quality and surface topography of the produced hole-like micropatterns are determined by the laser processing parameters, such as irradiated energy density and the number of pulses. Laser-induced periodic surface structures (LIPSS) are also observed on the treated surfaces, whose shapes, periodicities, and orientations are strongly dependent on the accumulated fluence. Finally, the three structured metals are used as embossing molds to imprint microlenses on polymethyl methacrylate (PMMA) foils using an electrohydraulic press. Topographical profiles demonstrate that the obtained structures are comparable to the masters showing a satisfactory reproduction of the texture. The polymeric microlens arrays that showed the best surface homogeneity and overall quality were those embossed with the Cr molds.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Multidisciplinary Digital Publishing Institute  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
direct laser interference patterning  
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microstructures  
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laser-induced periodic surface structures  
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hot embossing  
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Ingeniería de los Materiales  
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Ingeniería de los Materiales  
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INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Picosecond laser interference patterning of periodical micro architectures on metallic molds for hot embossing  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2020-11-30T16:17:04Z  
dc.identifier.eissn
1996-1944  
dc.journal.volume
12  
dc.journal.number
20  
dc.journal.pagination
1-16  
dc.journal.pais
Suiza  
dc.description.fil
Fil: Fu, Yangxi. Technische Universität Dresden; Alemania  
dc.description.fil
Fil: Soldera, Marcos Maximiliano. Technische Universität Dresden; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. Universidad Nacional del Comahue. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina  
dc.description.fil
Fil: Wang, Wei. Technische Universität Dresden; Alemania  
dc.description.fil
Fil: Voisiat, Bogdan. Technische Universität Dresden; Alemania  
dc.description.fil
Fil: Lasagni, Andrés Fabián. Technische Universität Dresden; Alemania. Institut für Werkstoff-und Strahltechnik IWS; Alemania  
dc.journal.title
Materials  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1996-1944/12/20/3409  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/ma12203409