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  • Frontiers Media SA  (2)
  • 1
    Online Resource
    Online Resource
    Frontiers Media SA ; 2019
    In:  Advanced Optical Technologies Vol. 8, No. 3-4 ( 2019-06-26), p. 225-231
    In: Advanced Optical Technologies, Frontiers Media SA, Vol. 8, No. 3-4 ( 2019-06-26), p. 225-231
    Abstract: Industrial high-precision 3D Printing (HP3DP) via two-photon absorption (TPA) provides freedom in design for the fabrication of novel products that are not feasible with conventional techniques. Up to now, 2PP-fabrication has only been used for structures on the micrometer scale due to limited traveling ranges of the translation stages and the field-of-view (FoV) of microscope objectives (diameters below 0.5 mm). For industrial applications, not only high throughput but also scalability in size is essential. For this purpose, this contribution gives insights into different manufacturing strategies composed of varying exposure modes, fabrication modes, and structuring modes, which enable the generation of large-scale optical elements without relying on stitching. With strategies like stage-only mode or synchronized movement of galvoscanners and translation stages, optical elements with several millimeters in diameter and freeform shape can be fabricated with optical surface quality.
    Type of Medium: Online Resource
    ISSN: 2192-8584 , 2192-8576
    Language: English
    Publisher: Frontiers Media SA
    Publication Date: 2019
    detail.hit.zdb_id: 2663362-0
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  • 2
    Online Resource
    Online Resource
    Frontiers Media SA ; 2021
    In:  Advanced Optical Technologies Vol. 10, No. 1 ( 2021-02-23), p. 59-70
    In: Advanced Optical Technologies, Frontiers Media SA, Vol. 10, No. 1 ( 2021-02-23), p. 59-70
    Abstract: The continuous miniaturization of components and devices along with the increasing need of sustainability in production requires materials which can fulfill the manifold requests concerning their functionality. From an industrial point of view emphasis is on cost reduction either for the materials, the processes, or for both, along with a facilitation of processing and a general reduction of resource consumption in manufacturing. Multifunctional nanoscale materials have been widely investigated due to their tunable material properties and their ability to fulfill the increasingly growing demands in miniaturization, ease of processes, low-cost manufacturing, scalability, reliability, and finally sustainability. A material class which fulfills these requirements and is suited for integrated or waferscale optics are inorganic–organic hybrid polymers such as ORMOCER ® s [ORMOCER ® is registered by the Fraunhofer Gesellschaft für Angewandte Forschung e.V. and commercialized by microresist technology GmbH under license since 2003]. The combination of chemically designed multifunctional low-cost materials with tunable optical properties is very attractive for (integrated) optical and waferscale applications via a variety of different nano- and microstructuring techniques to fabricate micro- and nano-optical components, typically within less than a handful of process steps. The influence of photoinitiator and cross-linking conditions onto the optical properties of an acrylate-based inorganic–organic hybrid polymer will be discussed, and its suitability for being applied in waferscale optics is demonstrated and discussed for miniaturized multi- and single channel imaging optics.
    Type of Medium: Online Resource
    ISSN: 2192-8584 , 2192-8576
    Language: English
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2663362-0
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
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