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Proceedings Paper • Open Access

Manufacturing of molds by multiphoton polymerization for micro-replication of optically enhanced surfaces
Author(s): Nerea Otero; Sara Vidal; Félix Ares; Ivette Coto; Francisco Gontad; Tamara Delgado; Pablo Romero

Paper Abstract

Freeform and microstructured features are generated by MultiPhoton Polymerization with an ultrafast laser, on tool-steel inserts, for microreplication of optical surfaces. The generation of optical surfaces has been studied by combining laser machining and multiphoton polymerization techniques. Resolution in the range of few microns, down to 300 nm lateral dimension, has been targeted on the optically enhanced surfaces. The microstructured surfaces have been further replicated by injection molding on polymer components of several cm2. The fabrication accuracy and precision has been evaluated in terms of lateral and vertical resolution of the laser generated features, and the replicated ones. The technology aims to simplify the assembly routes for heterogeneously integrated optoelectronics through direct overmolding of the optics on the components (transceivers, LEDs or sensors), with drastic improvements in cost, productivity and performance.

Paper Details

Date Published: 2 March 2020
PDF: 6 pages
Proc. SPIE 11271, Laser 3D Manufacturing VII, 112710X (2 March 2020); doi: 10.1117/12.2549961
Show Author Affiliations
Nerea Otero, AIMEN - Asociación de Investigación Metalúrgica del Noroeste (Spain)
Sara Vidal, AIMEN - Asociación de Investigación Metalúrgica del Noroeste (Spain)
Félix Ares, AIMEN - Asociación de Investigación Metalúrgica del Noroeste (Spain)
Ivette Coto, AIMEN - Asociación de Investigación Metalúrgica del Noroeste (Spain)
Francisco Gontad, AIMEN - Asociación de Investigación Metalúrgica del Noroeste (Spain)
Tamara Delgado, AIMEN - Asociación de Investigación Metalúrgica del Noroeste (Spain)
Pablo Romero, AIMEN - Asociación de Investigación Metalúrgica del Noroeste (Spain)


Published in SPIE Proceedings Vol. 11271:
Laser 3D Manufacturing VII
Bo Gu; Hongqiang Chen; Henry Helvajian, Editor(s)

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