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2013-03-29

Giant Circular Dichroism and Negative Refractive Index of Chiral Metamaterial Based on Split-Ring Resonators

By Yongzhi Cheng, Yan Nie, Lin Wu, and Rong Zhou Gong
Progress In Electromagnetics Research, Vol. 138, 421-432, 2013
doi:10.2528/PIER13011202

Abstract

In this paper, a double-layer split-ring resonator structure chiral metamaterial was proposed which could exhibit pronounced circular dichroism (CD) effect and negative refractive index at microwave frequencies. Experiment and simulation calculations are in good agreement. The retrieved effective electromagnetic parameters indicate that the lower frequency CD effect is associated with the negative refractive index property of the left circularly polarized (LCP) wave, and the upper one is to the right circularly polarized (RCP) wave. The mechanism of the giant CD effect could be further illustrated by simulated surface current and power loss density distributions.

Citation


Yongzhi Cheng, Yan Nie, Lin Wu, and Rong Zhou Gong, "Giant Circular Dichroism and Negative Refractive Index of Chiral Metamaterial Based on Split-Ring Resonators," Progress In Electromagnetics Research, Vol. 138, 421-432, 2013.
doi:10.2528/PIER13011202
http://jpier.org/PIER/pier.php?paper=13011202

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