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Proceedings Paper

Micro-optical sensor system for birefringence characterization of textile fibers
Author(s): Uwe D. Zeitner; S. Kaufmann; Ernst-Bernhard Kley
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Paper Abstract

We report a micro-optical sensor system for the on-line characterization of the textile-fiber birefringence in spinning machines. The measurement set-up is using the method of Senarmont but does not require any moving parts in the optical path. This has been achieved by usage of different micro-optical elements in combination with optical fibers for illumination and signal capturing. One of the key-components is an array of micropolarizers made of subwavelength-period metal-stripe gratings fabricated by e-beam direct writing and ion-beam etching. Having a total height of only 6mm the sensor system is extremely flat and thus applicable also in special spinning equipment.

Paper Details

Date Published: 3 November 2003
PDF: 6 pages
Proc. SPIE 5183, Lithographic and Micromachining Techniques for Optical Component Fabrication II, (3 November 2003); doi: 10.1117/12.505443
Show Author Affiliations
Uwe D. Zeitner, Fraunhofer-Institut fuer Angewandte Optik und Feinmechanik (Germany)
S. Kaufmann, Thueringisches Institut fuer Textil- und Kunststoff-Forschung (Germany)
Ernst-Bernhard Kley, Friedrich-Schiller-Univ. Jena (Germany)


Published in SPIE Proceedings Vol. 5183:
Lithographic and Micromachining Techniques for Optical Component Fabrication II
Ernst-Bernhard Kley; Hans Peter Herzig, Editor(s)

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