Document Type

Article

Publication Date

4-1-2013

Abstract

Polarization states are of particular importance for the manipulation of electromagnetic waves. Here, we proposed the design and experimental demonstration of anisotropic meta-mirror for achromatic polarization tuning. It is demonstrated that linear polarized wave can be achromatically transformed to its cross-polarization state or to arbitrary circular polarization after its reflection from the mirror. Microwave experiments verified that the fraction bandwidth for 90 transformation efficiency can be larger than 3:1. Furthermore, by utilizing photoinduced carrier generation in silicon, a broadband tunable circular polarizer is demonstrated in the terahertz regime. © 2013 American Institute of Physics.

Publication Title

Applied Physics Letters

DOI

10.1063/1.4799162

Comments

Copyright 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4799162]

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