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Proceedings Paper

Birefringent elements based on femtosecond laser-induced nanogratings
Author(s): Lourdes Patricia R. Ramirez; Matthias Heinrich; Sören Richter; Felix Dreisow; Robert Keil; Alexander V. Korovin; Ulf Peschel; Stefan Nolte; Andreas Tünnermann
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Paper Abstract

We report on the fabrication of birefringent optical components based on so-called nanogratings. These selforganized nanostructures with sub-wavelength periodicity are formed during femtosecond laser processing of transparent materials, resulting in characteristic birefringent modifications. Nanogratings provide the means for the direct inscription of customized birefringent elements with position-dependent retardation. We present our investigations on the formation process of nanogratings in fused silica and the influence of fabrication parameters, thereby identifying ways to systematically control the structural properties of the gratings. Consequently, we were able to fabricate nanograting-based birefringent elements with specific retardations in bulk fused silica.

Paper Details

Date Published: 25 February 2010
PDF: 8 pages
Proc. SPIE 7589, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications X, 758919 (25 February 2010); doi: 10.1117/12.843533
Show Author Affiliations
Lourdes Patricia R. Ramirez, Friedrich-Schiller-Univ. Jena (Germany)
Matthias Heinrich, Friedrich-Schiller-Univ. Jena (Germany)
Sören Richter, Friedrich-Schiller-Univ. Jena (Germany)
Felix Dreisow, Friedrich-Schiller-Univ. Jena (Germany)
Robert Keil, Friedrich-Schiller-Univ. Jena (Germany)
Alexander V. Korovin, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Ulf Peschel, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Stefan Nolte, Friedrich-Schiller-Univ. Jena (Germany)
Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Andreas Tünnermann, Friedrich-Schiller-Univ. Jena (Germany)
Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)


Published in SPIE Proceedings Vol. 7589:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications X
Alexander Heisterkamp; Joseph Neev; Stefan Nolte; Rick P. Trebino, Editor(s)

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