Journal
APPLIED PHYSICS LETTERS
Volume 93, Issue 19, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3021082
Keywords
birefringence; chirality; metamaterials; optical rotation
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Funding
- Engineering and Physical Sciences Research Council (U.K.)
- Engineering and Physical Sciences Research Council [EP/C511786/1, EP/G00515X/1] Funding Source: researchfish
- EPSRC [EP/G00515X/1] Funding Source: UKRI
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We demonstrate optical activity in an intrinsically non-chiral anisotropic planar metamaterial. The phenomenon is due to extrinsic chirality resulting from the mutual orientation of the metamaterial structure and the incident electromagnetic wave. The polarization effect, which has a resonant nature, features a spectral band where linear birefringence is practically absent and can be easily tuned by tilting the plane of the metamaterial relative to the incident beam.
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