Giant chiral optical response from a twisted-arc metamaterial. Academic Article

abstract

• We demonstrate enormously strong chiral effects from a photonic metamaterial consisting of an array of dual-layer twisted-arcs with a total thickness of /6. Experimental results reveal a circular dichroism of 0.35 in the absolute value and a maximum polarization rotation of 305/ in a near-infrared wavelength region. A transmission of greater than 50% is achieved at the frequency where the polarization rotation peaks. Retrieved parameters from measured quantities further indicate an actual optical activity of 76 per and a difference of 0.42 in the indices of refraction for the two circularly polarized waves of opposite handedness.

authors

• Lan, Shoufeng

published proceedings

• Nano Lett

author list (cited authors)

• Cui, Y., Kang, L., Lan, S., Rodrigues, S., & Cai, W.

citation count

• 217

complete list of authors

• Cui, Yonghao||Kang, Lei||Lan, Shoufeng||Rodrigues, Sean||Cai, Wenshan

publication date

• February 2014

publisher

• American Chemical Society (ACS)  Publisher

published in

• Nano Letters: a journal dedicated to nanoscience and nanotechnology  Journal

keywords

• Chirality
• Circular Dichroism
• Metamaterials
• Nanophotonics
• Optical Activity

PubMed Central ID

• 24422639

Digital Object Identifier (DOI)

• 10.1021/nl404572u

start page

• 1021

end page

• 1025

volume

• 14

issue

• 2

URL

• http://dx.doi.org/10.1021/nl404572u