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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 22 — Oct. 27, 2008
  • pp: 17269–17275

Ferrite-based magnetically tunable left-handed metamaterial composed of SRRs and wires

Lei Kang, Qian Zhao, Hongjie Zhao, and Ji Zhou  »View Author Affiliations

Optics Express, Vol. 16, Issue 22, pp. 17269-17275 (2008)

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We experimentally demonstrate a magnetically tunable left-handed metamaterial by introducing yttrium iron garnet rods into SRRs/wires array. It shows that the left-handed passband of the metamaterial can be continuously and reversibly adjusted by external dc applied magnetic fields. Retrieved effective parameters based on simulated scattering parameters show that tunable effective refraction index can be conveniently realized in a broad frequency range by changing the applied magnetic field. Different from those tuned by controlling the capacitance of equivalent LC circuit of SRR, this metamaterial is based on a mechanism of magnetically tuning the inductance via the active ambient effective permeability.

© 2008 Optical Society of America

OCIS Codes
(000.0000) General : General
(350.4010) Other areas of optics : Microwaves

ToC Category:

Original Manuscript: August 13, 2008
Revised Manuscript: October 5, 2008
Manuscript Accepted: October 7, 2008
Published: October 13, 2008

Lei Kang, Qian Zhao, Hongjie Zhao, and Ji Zhou, "Ferrite-based magnetically tunable left-handed metamaterial composed of SRRs and wires," Opt. Express 16, 17269-17275 (2008)

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Fig. 1. Fig. 2. Fig. 3.

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