Comparison of chiral metamaterial designs for repulsive Casimir force

TitleComparison of chiral metamaterial designs for repulsive Casimir force
Publication TypeJournal Article
Year of Publication2010
AuthorsZhao R, Koschny T, Economou EN, Soukoulis CM
Journal TitlePhysical Review B
Date Published06/22
ISBN Number1098-0121
Accession NumberISI:000279143700001

In our previous work [R. Zhao, J. Zhou, Th. Koschny, E. N. Economou, and C. M. Soukoulis, Phys. Rev. Lett. 103, 103602 (2009)], we found that repulsive Casimir forces could be realized by using chiral metamaterials if the chirality is strong enough. In this work, we check four different chiral metamaterial designs (i.e., Twisted-Rosettes, Twisted-Crosswires, Four-U-SRRs, and Conjugate-Swastikas) and find that the designs of Four-U-SRRs and Conjugate-Swastikas are the most promising candidates to realize repulsive Casimir force because of their large chirality and the small ratio of structure length scale to resonance wavelength.

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