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We investigate the polarizing properties of chiral photonic metamaterials composed of three-dimensional metal helices. The calculated spectra reveal pronounced circular dichroism. Our geometry parameters are compatible with fabrication via direct laser writing and electrodeposition.
We present a planar magnetic metamaterial fabricated using 3D direct laser writing and silver chemical vapor deposition as well as a negative-index bi-anisotropic metamaterial metallized via silver shadow evaporation. Calculations and experiments show good agreement.
We realize a variety of silicon photonic crystal structures. Direct laser writing of polymeric templates (square/circular spirals and slanted pore structures) combined with a silicon single-inversion procedure leads to band gaps in the near infrared.
We fabricate planar magnetic photonic metamaterials via direct laser writing and silver chemical vapor deposition, an approach, which is also suitable for three-dimensional structures. Retrieval of the effective metamaterial parameters reveals the importance of bi-anisotropy.
We present a novel photonic heterostructure based on chiral 3D photonic crystals allowing for non-reciprocal transmission of light. We fabricate various corresponding structures by means of direct laser writing.
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