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Dual-step method to manufacture a polymeric GRIN lens with a high refractive index range

TitoloDual-step method to manufacture a polymeric GRIN lens with a high refractive index range
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2021
AutoriLoffredo, Fausta, Villani Fulvia, De Girolamo Del Mauro Anna, Sico Giuliano, and Nenna G.
RivistaApplied Optics
Volume60
Paginazione11228-11234
ISSN1559128X
Parole chiaveAxial concentration, Concentration- gradients, Gelation, Gradient-index lens, High refractive, Hydrogels, Index range, Polymeric solution, Polyvinyl alcohols, Process-based, Refractive index, Simple++, Step method, Thermoplastic polymer
Abstract

We introduce a new method to obtain gradient index (GRIN) lenses by dual-step process based on interdiffusion of two different polymeric solutions and gelation of the final mixture. The aim of the study was investigated as a simple process to produce a gel characterized by a continuous axial concentration gradient starting from two thermoplastic polymers [poly(vinyl alcohol) and poly(acrylic acid)] having different refractive indexes. We also introduced a laser scanning system that is conveniently implemented to analyze the refractive index variation in the samples. © 2021 Optical Society of America

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85122569196&doi=10.1364%2fAO.439888&partnerID=40&md5=e8b6fd9f37e96d10ac132b3d56a49917
DOI10.1364/AO.439888
Citation KeyLoffredo202111228