Plasmonic metamaterial wave retarders in reflection by orthogonally oriented detuned electrical dipoles.
نویسندگان
چکیده
We demonstrate that a pair of perpendicular electrical dipolar scatterers resonating at different frequencies can be used as a metamaterial unit cell to construct a nanometer-thin retarder in reflection, designing nanocross and nanobrick plasmonic configurations to function as reflecting quarter-wave plates at ~1520 and 770 nm, respectively. The design is corroborated experimentally with a monolayer of gold nanobricks, transforming linearly polarized incident radiation into circularly polarized radiation at ~780 nm.
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ورودعنوان ژورنال:
- Optics letters
دوره 36 9 شماره
صفحات -
تاریخ انتشار 2011