A frequency-tunable 90°-polarization rotation device using composite chiral metamaterials

Kun Song; Xiaopeng Zhao; Yahong Liu; Quanhong Fu; Chunrong Luo

doi:10.1063/1.4820810

A frequency-tunable 90°-polarization rotation device using composite chiral metamaterials

Kun Song, Xiaopeng Zhao, Yahong Liu, Quanhong Fu, Chunrong Luo

School of Physical Science and Technology

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

60 Scopus citations

Abstract

The electromagnetic behaviors of the metamaterial can be artificially controlled by changing the effective permittivity of the nearby background medium. Utilizing this fantastic feature, an ultrathin and frequency-tunable polarization rotation device, which can achieve 90° polarization rotation for a linearly polarized incident wave, is constructed via the combination of a composite chiral metamaterial and two auxiliary dielectric slabs. It shows that the operating frequency of the resulting 90°-polarization rotation device can be continuously and reversibly tuned in a wide frequency range by mechanical means. The experimentally measured results are in agreement with the numerical values.

Original language	English
Article number	101908
Journal	Applied Physics Letters
Volume	103
Issue number	10
DOIs	https://doi.org/10.1063/1.4820810
State	Published - 2 Sep 2013

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abstract = "The electromagnetic behaviors of the metamaterial can be artificially controlled by changing the effective permittivity of the nearby background medium. Utilizing this fantastic feature, an ultrathin and frequency-tunable polarization rotation device, which can achieve 90° polarization rotation for a linearly polarized incident wave, is constructed via the combination of a composite chiral metamaterial and two auxiliary dielectric slabs. It shows that the operating frequency of the resulting 90°-polarization rotation device can be continuously and reversibly tuned in a wide frequency range by mechanical means. The experimentally measured results are in agreement with the numerical values.",

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AB - The electromagnetic behaviors of the metamaterial can be artificially controlled by changing the effective permittivity of the nearby background medium. Utilizing this fantastic feature, an ultrathin and frequency-tunable polarization rotation device, which can achieve 90° polarization rotation for a linearly polarized incident wave, is constructed via the combination of a composite chiral metamaterial and two auxiliary dielectric slabs. It shows that the operating frequency of the resulting 90°-polarization rotation device can be continuously and reversibly tuned in a wide frequency range by mechanical means. The experimentally measured results are in agreement with the numerical values.

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A frequency-tunable 90°-polarization rotation device using composite chiral metamaterials

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