Fabrication of polymeric micro-optical components with integrated nano-topography for advanced photonic applications

Conference: Mikro-Nano-Integration - 7. GMM-Workshop
10/22/2018 - 10/23/2018 at Dortmund, Deutschland

Proceedings: GMM-Fb. 92: Mikro-Nano-Integration

Pages: 4Language: englishTyp: PDF

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Wolf, J.; Gruetzner, S.; Schleunitz, A.; Gruetzner, G. (micro resist technology GmbH, Berlin, Germany)
Ferstl, M. (Fraunhofer-Institut für Nachrichtentechnik (HHI), Berlin, Germany)
Lawal, J. (CEA-Leti, Grenoble, France)

This paper presents a novel and innovative combination of UV-replication and inkjet printing techniques with the goal to advance the manufacturing processes for individualized polymeric hybrid micro-optical components. With focus on a technology convergence, inkjet printing of the commercially available optical hybrid polymer InkOrmo is used as a dispensing technique by means of additive manufacturing. Additionally, the ink is printed on a patterned substrate and after UV-curing the lens is separated from the micro-structured substrate. This results in a combination of refractive and diffractive elements in one single component. The refractive part on top is self-organized by the surface energy and the shape is adjusted with the amount of dispensed ink enabling to tune the refractive power of the lens. The diffractive structure on the opposite side of the hybrid lens is obtained by demolding the polymer lens from the diffractive masterstructure. Due to the negative dispersion of diffractive optical elements, their combination with refractive optical elements, especially lenses, is a well-known, well-established and effective method (e.g. in CD-players) for correction of chromatic aberrations.