Highly tunable optical activity in planar achiral terahertz metamaterials.
نویسندگان
چکیده
Using terahertz time domain spectroscopy we demonstrate tunable polarization rotation and circular dichroism in intrinsically non-chiral planar terahertz metamaterials without twofold rotational symmetry. The observed effect is due to extrinsic chirality arising from the mutual orientation of the metamaterial plane and the propagation direction of the incident terahertz wave.
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ورودعنوان ژورنال:
- Optics express
دوره 18 13 شماره
صفحات -
تاریخ انتشار 2010