Open AccessGiant cross polarization in a nanoimprinted metamaterial combining a fishnet with its Babinet complement
Author(s) -
Dong Lin,
Michael J. Haslinger,
J. Danzberger,
Iris Bergmair,
Kurt Hingerl,
Calin Hrelescu,
Thomas A. Klar
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.019034
Subject(s) - optics , polarization (electrochemistry) , metamaterial , materials science , physics , chemistry
We present a large area (1 cm2) nanoimprinted metamaterial comprising a fishnet structure and its Babinet complement, which shows giant cross polarization. When illuminated with s-polarized light, the reflected beam can be p-polarized up to 96%, depending on the azimuthal orientation of the sample. This experimental result is close to the result of numerical simulations, which predict 98.7% of cross-polarization. It is further shown, that 95-100% cross polarization is only achieved in the case when the fishnet is combined with its Babinet complement. Each structure alone (either an ordinary fishnet or a plane with metallic rectangles only) shows substantially less polarization conversion.