Darmstadt 2008 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 23: Photonik II
Q 23.3: Vortrag
Dienstag, 11. März 2008, 17:00–17:15, 2B/C
Photonic Metamaterials by Direct Laser Writing and Silver Chemical Vapor Deposition — •Christine Plet1, Michael Rill1, Michael Thiel1, Stefan Linden2, Georg von Freymann2, and Martin Wegener1,2 — 1Institut für Angewandte Physik, Universität Karlsruhe (TH), 76128 Karlsruhe, Germany — 2Institut für Nanotechnologie, Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft, 76021 Karlsruhe, Germany
Metamaterials are man-made composite structures composed of metallic sub-wavelength scale functional building blocks that are densely packed into an effective material [1,2]. This approach especially allows for artificial magnetism at elevated frequencies.
We fabricate planar magnetic photonic metamaterials via direct laser writing [3] and silver chemical vapor deposition, an approach, which is also suitable for three-dimensional structures.
When retrieving effective metamaterial parameters for normal incidence of light, one has to be cautious because the fabricated structures are non-centrosymmetric. Thus, a description in terms of just electric permittivity ε and magnetic permeability µ is fundamentally not possible. Here, we follow the bi-anisotropic retrieval described in Ref. [4].
[1] V.M. Shalaev, Nature Phot. 1, 41 (2006)
[2] C.M. Soukoulis, S. Linden, and M. Wegener, Science 315, 47 (2007)
[3] see, e.g., http://www.nanoscribe.de
[4] X. Chen, B. Wu, J. Kong, and T. Grzegorczyk, Phys. Rev. E 71, 046610 (2005)