Similar structures, different characteristics: optical performances of circular polarizers with single-, double-, and multi-helical metamaterials

ZhenYu Yang; Ming Zhao; PeiXiang Lu

doi:10.1117/12.876843

21 February 2011 Similar structures, different characteristics: optical performances of circular polarizers with single-, double-, and multi-helical metamaterials

ZhenYu Yang, Ming Zhao, PeiXiang Lu

Author Affiliations +

Proceedings Volume 7933, Physics and Simulation of Optoelectronic Devices XIX; 79331C (2011) https://doi.org/10.1117/12.876843
Event: SPIE OPTO, 2011, San Francisco, California, United States

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.

Citation Download Citation

ZhenYu Yang, Ming Zhao, and PeiXiang Lu "Similar structures, different characteristics: optical performances of circular polarizers with single-, double-, and multi-helical metamaterials", Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 79331C (21 February 2011); https://doi.org/10.1117/12.876843

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