Abstract

Metamaterials have generated considerable research interest in manipulating the polarization state of light, but many proposals suffer from narrow bandwidth or low transmission efficiency. Here researchers show that a classical multiple-beam interference mechanism can be used to modulate the phase dispersion of transmitted waves in metamaterials, which motivates a general strategy to achieve a broadband wave plate by independently controlling the phase dispersion for the two orthogonal polarizations. These findings can stimulate the production of high-performance broadband optical devices based on various metamaterials in different frequency domains, to impact applications in photonics.

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