Paper
20 September 1999 Excimer laser fabrication of low-cost diffractive optical prototypes for CO2 laser marking applications
Manuel Flury, Jean-Guy Fontaine, Philippe Gerard, Thierry Engel
Author Affiliations +
Proceedings Volume 3822, Computer-Controlled Microshaping; (1999) https://doi.org/10.1117/12.364225
Event: Industrial Lasers and Inspection (EUROPTO Series), 1999, Munich, Germany
Abstract
We present a novel use of micro-machining with excimer laser: realization of reflective diffractive optical elements (DOE) for laser marking. The DOE's design is first calculated using the standard Gerchberg-Saxton algorithm associated with optimization procedures. The design takes into account the following parameters for the diffraction efficiency optimization: incident beam angle, M2 quality factor and the modulation transfer function of the fabrication process. We consider here two phase levels elements in Fourier and Fresnel configurations. The fabrication process makes use of excimer laser ablation. We demonstrate the transfer of this design on different materials with two cases: direct and indirect substrate etching.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Manuel Flury, Jean-Guy Fontaine, Philippe Gerard, and Thierry Engel "Excimer laser fabrication of low-cost diffractive optical prototypes for CO2 laser marking applications", Proc. SPIE 3822, Computer-Controlled Microshaping, (20 September 1999); https://doi.org/10.1117/12.364225
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CITATIONS
Cited by 4 scholarly publications.
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KEYWORDS
Diffractive optical elements

Laser ablation

Excimer lasers

Holograms

Photoresist materials

Etching

Diffraction

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