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Proceedings Paper

Similar structures, different characteristics: optical performances of circular polarizers with single-, double-, and multi-helical metamaterials
Author(s): ZhenYu Yang; Ming Zhao; PeiXiang Lu
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Paper Abstract

Recently, it was demonstrated by J.K. Gansel et al. that three-dimensional single-helical metamaterials can serve as broadband circular polarizers in the infrared range. Firstly, in this paper, we used the finite difference time domain (FDTD) method to study circular polarizers with double-helical metamaterials. The results show that the operation bands are more than 50% broader than those of the single-helical structures. However, we also notice that the signal-to-noise (S/N) ratios of them are both poor (~10 dB). Secondly, we analyzed the performances of triple-helical structures. It is obvious that the triple-helical circular polarizer has not only a broad operation band, but also a much higher S/N ratio (~35 dB) than single- and double-helixes.

Paper Details

Date Published: 21 February 2011
PDF: 7 pages
Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 79331C (21 February 2011); doi: 10.1117/12.876843
Show Author Affiliations
ZhenYu Yang, Huazhong Univ. of Science and Technology (China)
Ming Zhao, Huazhong Univ. of Science and Technology (China)
PeiXiang Lu, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 7933:
Physics and Simulation of Optoelectronic Devices XIX
Bernd Witzigmann; Fritz Henneberger; Yasuhiko Arakawa; Alexandre Freundlich, Editor(s)

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