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Proceedings Paper

3D photonic gratings for optical sensing and image processing
Author(s): Christian Mueller; Henning Markoetter; Alexander Schloesser; Susanna Orlic
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Paper Abstract

A new approach for 4D spatial-spectral optical sensing is based on light diffraction at holographically recorded 3D refractive index gratings. At least four collimated laser beams overlapped in a photosensitive polymer layer are used to generate a periodic 3D structure. Diffraction properties are widely adjustable by varying the recording beam geometry. Different 3D photonic gratings are characterized with respect to their basic diffraction properties and the results are used in optimizing the exposure process and parameters. An optical imaging setup has been constructed to display the 4D optical filtering properties of recorded 3D gratings when illuminated by elementary intensity patterns of a white light source.

Paper Details

Date Published: 3 September 2008
PDF: 9 pages
Proc. SPIE 7053, Organic 3D Photonics Materials and Devices II, 70530A (3 September 2008); doi: 10.1117/12.797287
Show Author Affiliations
Christian Mueller, Technische Univ. Berlin (Germany)
Henning Markoetter, Technische Univ. Berlin (Germany)
Alexander Schloesser, Technische Univ. Berlin (Germany)
Susanna Orlic, Technische Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 7053:
Organic 3D Photonics Materials and Devices II
Susanna Orlic, Editor(s)

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