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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 28, Iss. 1 — Jan. 1, 2011
  • pp: 19–23

Broadband terahertz circular polarizers with single- and double-helical array metamaterials

ShengXi Li, ZhenYu Yang, Jing Wang, and Ming Zhao  »View Author Affiliations


JOSA A, Vol. 28, Issue 1, pp. 19-23 (2011)
http://dx.doi.org/10.1364/JOSAA.28.000019


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Abstract

A new broadband terahertz circular polarizer with a double-helix structure is proposed in this paper. Furthermore, we systematically simulated the performance of single- and double-helix circular polarizers. Our numerical simulation results show that the function regions of double-helical metamaterials are about 50% broader than those of the single-helical metamaterials in terahertz. We also analyzed the dependence of the performance of the single- and double-helix metamaterials on different structure parameters. Following the antenna theory and the metal wire grating theory, proper explanations were given to interpret the changes of performance with various structure parameters and the difference between the single and double helix.

© 2011 Optical Society of America

OCIS Codes
(260.5430) Physical optics : Polarization
(160.3918) Materials : Metamaterials
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Materials

History
Original Manuscript: August 24, 2010
Revised Manuscript: November 3, 2010
Manuscript Accepted: November 3, 2010
Published: December 22, 2010

Citation
ShengXi Li, ZhenYu Yang, Jing Wang, and Ming Zhao, "Broadband terahertz circular polarizers with single- and double-helical array metamaterials," J. Opt. Soc. Am. A 28, 19-23 (2011)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-28-1-19


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