Flexible chiral metamaterials in the terahertz regime: a comparative study of various designs

TitleFlexible chiral metamaterials in the terahertz regime: a comparative study of various designs
Publication TypeJournal Article
Year of Publication2012
AuthorsKenanakis G, Zhao R, Stavrinidis A, Konstantinidis G, Katsarakis N, Kafesaki M, Soukoulis CM, Economou EN
Journal TitleOptical Materials Express
Volume2
Pages1702-1712
Date Published12
Type of ArticleArticle
ISBN Number2159-3930
Accession NumberWOS:000311952200003
Keywordscircular-dichroism, negative refractive-index, optical-activity, photonic metamaterial, technology
Abstract

Five different chiral metamaterials in the terahertz (THz) regime, fabricated on fully flexible polyimide substrates, are comparatively studied via numerical calculations and experimental measurements. The chiral properties of these metamaterials, which are discussed based on their optical activity, circular dichroism, and the retrieved effective parameters, show pronounced pure optical activity (larger than 300 degrees/wavelength), as well as important circular polarization generation and filtering capabilities. Negative refractive index is also obtained for all the considered designs. (C) 2012 Optical Society of America

URL<Go to ISI>://WOS:000311952200003
DOI10.1364/OME.2.001702
Alternate JournalOpt. Mater. Express