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Heavy-duty and high-performance 3D micro-optics mady by laser additive manufacturing
1  Vilnius University
Academic Editor: Kaupo Kukli

Published: 21 March 2023 by MDPI in Holography Meets Advanced Manufacturing session Advanced Manufacturing 1
Abstract:

Laser 3D printing of high transparency and resiliency free-form micro-optics will be presented. The additive manufacturing is realized employing femtosecond laser direct write 3D nanolithography (fs-LDW or a.k.a. two-photon polymerization) combined with high temperature calcination (pyrolysis) and atomic layer deposition (ALD) techniques. The developed approach allows fabrication of various single optical elements and stacked components ranging in dimensions below 100 µm. Produced micro-optic objects are characterized of their optical performance (focusing, imaging, transparency) and determining their laser induced damage threshold (LIDT) values. This opens novel applications of laser 3D printed micro-optics under harsh conditions: radiation, temperature, acidic environments, pressure variations.

Keywords: laser 3D nanolithography; additive manufacturing; micro-optics; SZ2080™; hybrid materials; inorganics; calcination; high temperature
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The optical performance (focusing, imaging, transparency) and laser induced damage threshold (LIDT) characteristics of the manufactured micro-optic geometry dash lite devices are characterized. Researching lasers helps us better understand how they work. Each working principle is a combination of many forming processes. An excellent resource for studying the topic of 3D micro-optics

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Impressive study on laser 3D printing for micro optics in harsh conditions. The process combining femtosecond laser tech calcination and layer deposition creates versatile sub 100 µm optical elements.
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