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Z. Naturforsch. 67a, 491 – 497
(2012)
doi:10.5560/ZNA.2012-0051
Split and Merge of Left–Right Circular Polarized Light through Coupled Magnetic Resonators
1 Faculty of Science, Jiangsu University, Zhenjiang, 212013, P. R. China
2 School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
Received January 11, 2012 / revised May 7, 2012 / published online August 2, 2012
Reprint requests to: J. W.; E-mail:
wjj4461@ujs.edu.cn
In order to obtain the means to control light polarization, we designed a structure of coupled magnetic resonators and studied its transmission properties by the 4 × 4 transfer matrix method. The incidence of linearly polarized light results in two transmission resonant peaks of left-handed circular polarization at shorter wavelengths and two transmission resonant peaks of right-handed circular polarization at longer wavelengths, respectively. Through adjusting the magnetizations, the inner left-handed circular polarization and right-handed circular polarization can be merged into one linear polarization, while the two outside resonant peaks keep their circular polarization. The polarized direction of the output linearly polarized light can be controlled by the polarized direction of incidence light. The incidence light with one polarization can output light with three kinds of polarizations through the designed structure.
Key words: Light Polarizations; Coupled Magnetic Resonators; 4 × 4 Transfer Matrix Method.
PACS numbers: 42.25.Ja; 78.20.Ls; 75.70.-i; 73.40.Gk