Journal
OPTICS COMMUNICATIONS
Volume 291, Issue -, Pages 345-348Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2012.10.046
Keywords
Polarization; Metamaterial; Optical activity
Categories
Funding
- 973 Program of China [2011CB301800]
- National Natural Science Funds for Distinguished Young Scholar [60825405]
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In this paper, a dual-band 90 polarization rotator is proposed by using chiral metamaterial composed of two pairs of two-layered twisted split ring resonators (SRRs) in each unit. When an x-polarized wave incidents on this polarization rotator, the experimental result shows that the electric field is transformed into its cross-polarization at the frequency of 13.47 GHz and 15.39 GHz due to the transverse magnetic dipole coupling, and its transmission coefficients are -0.37 dB and -1.05 dB at these two resonances, respectively. The surface current distributions are calculated to explain original physics. (C) 2012 Elsevier B.V. All rights reserved.
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