Micromachined switchable metamaterial with dual resonance

We experimentally demonstrate a micromachined switchable metamaterial with dual mode resonance which is induced at THz regime under oblique incidence. Here, we explore, both theoretically and experimentally, the dynamic dual mode switching by reshaping metamaterial elements using micromachined actuators. The mode switching allows robust control over the transmission and the reflection of the metamaterial at 0.76 THz and 1.16 THz. Such switchable dual mode metamaterial promises wide applications in optical switches, tunable filters, and THz detectors.

[1]  R. Shelby,et al.  Experimental Verification of a Negative Index of Refraction , 2001, Science.

[2]  B. Jin,et al.  Tuning of superconducting niobium nitride terahertz metamaterials. , 2011, Optics express.

[3]  Yuehui Lu,et al.  Active manipulation of plasmonic electromagnetically-induced transparency based on magnetic plasmon resonance. , 2010, Optics express.

[4]  M. A. Osipov,et al.  Tunability of wire-grid metamaterial immersed into nematic liquid crystal , 2007, 0708.4286.

[5]  Yuri S. Kivshar,et al.  Magnetoelastic metamaterials , 2011, 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC).

[6]  Yingli Liu,et al.  Terahertz metamaterials with VO2 cut-wires for thermal tunability , 2010 .

[7]  Yuri S. Kivshar,et al.  Metamaterials and metaoptics , 2011 .

[8]  Ai Qun Liu,et al.  Switchable Magnetic Metamaterials Using Micromachining Processes , 2011, Advanced materials.

[9]  Yuri Kivshar,et al.  Structural tunability in metamaterials , 2009, 0907.2303.

[10]  Yuri S. Kivshar,et al.  Liquid crystal based nonlinear fishnet metamaterials , 2012 .

[11]  O. Reynet,et al.  Voltage controlled metamaterial , 2004 .

[12]  Koray Aydin,et al.  Highly strained compliant optical metamaterials with large frequency tunability. , 2010, Nano letters.

[13]  Nikolay I. Zheludev,et al.  Reconfigurable photonic metamaterials , 2011, CLEO: 2011 - Laser Science to Photonic Applications.

[14]  Maxim V. Gorkunov,et al.  Tuning of a nonlinear metamaterial band gap by an external magnetic field , 2004 .

[15]  Guo-Qiang Lo,et al.  A Micromachined Reconfigurable Metamaterial via Reconfiguration of Asymmetric Split‐Ring Resonators , 2011 .

[16]  Yuri S. Kivshar,et al.  Active and tunable metamaterials , 2011 .

[17]  F. J. Rachford,et al.  Tunable negative index metamaterial using yttrium iron garnet , 2007 .

[18]  Filippo Capolino,et al.  Theory and Phenomena of Metamaterials , 2009 .

[19]  Hu Tao,et al.  Reconfigurable terahertz metamaterials. , 2009, Physical review letters.

[20]  Yuri S. Kivshar,et al.  Metamaterial tuning by manipulation of near-field interaction , 2009, 0912.1152.