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Proceedings Paper

Three-dimensional chiral photonic crystals by direct laser writing
Author(s): Michael Thiel; Martin Wegener; Georg von Freymann
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Paper Abstract

We review our recent work on three-dimensional chiral photonic crystals. High-quality polymeric three-dimensional spiral and layer-by-layer photonic crystals are fabricated via direct laser writing. Polarization stop bands for circularly polarized light are observed, leading up to a suppression of a factor 52 for one circular polarization with respect to the other. The transmittance for the passing polarization is as high as 95 % . These chiral elements are sandwiched between one-dimensional lamellae structures acting as quarterwave plates to form thin-film polarizers, which can be operated under perpendicular incidence.

Paper Details

Date Published: 6 February 2008
PDF: 6 pages
Proc. SPIE 6883, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics, 68830K (6 February 2008); doi: 10.1117/12.762575
Show Author Affiliations
Michael Thiel, Univ. Karlsruhe (Germany)
Martin Wegener, Univ. Karlsruhe (Germany)
Forschungszentrum Karlsruhe (Germany)
Georg von Freymann, Univ. Karlsruhe (Germany)
Forschungszentrum Karlsruhe (Germany)

Published in SPIE Proceedings Vol. 6883:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics
Thomas J. Suleski; Winston V. Schoenfeld; Jian Jim Wang, Editor(s)

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