期刊
APPLIED PHYSICS LETTERS
卷 102, 期 13, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4799162
关键词
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资金
- 973 Program of China [2011CB301800]
- National Natural Science Funds [61138002]
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. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4799162]
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