Ultrabroadband optical circular polarizers consisting of double-helical nanowire structures

Z. Y. Yang, M. Zhao, P. X. Lu, Y. F. Lu

Research output: Contribution to journalArticlepeer-review

96 Scopus citations


Recently, it was demonstrated by Gansel et al. [Science 325, 1513 (2009)] that 3D single-helical metamaterials can serve as broadband circular polarizers in the IR range. In this study, we propose a structured metamaterial with double-helical nanowires to construct circular polarizers with boarder wavelength bands in the visible-light and near-IR regions. Using the finite-difference time-domain method, we confirmed that the circular polarizers with the double-helical structures have operation bands more than 50% broader than those of the single-helical structures.

Original languageEnglish (US)
Pages (from-to)2588-2590
Number of pages3
JournalOptics Letters
Issue number15
StatePublished - Aug 1 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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