Six states of splitting waves are observed when an electromagnetic wave propagates through wedge-shaped chiral metamaterials. The chirality and electromagnetic parameters, as well as the material parameter factor, are the main influences controlling the refractive indices of the material and the rotations of the out-going waves. The incidence angle or the angle of the wedge has a major impact on selecting the out-going waves and the occurrence of an evanescent wave. This new study discloses some of the less known aspects of chiral metamaterial design leading to a broader range of applications in optical devices.
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Wongkasem et al. (2010) studied this question.
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