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Appl. Phys. Lett. 97, 081116 (2010); http://dx.doi.org/10.1063/1.3481699 (3 pages)

Colossal optical activity of split-ring resonator arrays for millimeter waves

S. Engelbrecht, M. Wunderlich, A. M. Shuvaev, and A. Pimenov

Experimentelle Physik IV, Universität Würzburg, 97074 Würzburg, Germany

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(Received 30 June 2010; accepted 2 August 2010; published online 27 August 2010)

We have studied the optical activity of bilayered split-ring resonator arrays for millimeter waves. Using quasi-optical technique within controlled polarization rotation we were able to measure transmission and phase shift of these arrays within geometries with parallel and crossed polarizers. We determined experimentally the complex 2×2 transmission matrix which fully characterizes the arrays. We obtain an optical rotation of up to 600 deg/λ for the array thickness of 90 μm and at 3 mm wavelength. The polarization dependence of the optical activity can be effectively suppressed by introducing higher symmetries in the structures. Our results demonstrate the possibility to effectively control and investigate the polarization state of millimeter wave radiation.

© 2010 American Institute of Physics

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KEYWORDS and PACS

PACS

  • 78.20.Ek

    Optical activity

  • 81.05.Xj

    Metamaterials for chiral, bianisotropic and other complex media

  • 78.70.Gq

    Microwave and radio-frequency interactions

  • 42.79.-e

    Optical elements, devices, and systems

ARTICLE DATA

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

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