Plasmonically induced transparent magnetic resonance in a metallic metamaterial composed of asymmetric double bars.

We demonstrate that the trapped magnetic resonance mode can be induced in an asymmetric double-bar structure for electromagnetic waves normally incident onto the double-bar plane, which mode otherwise cannot be excited if the double bars are equal in length. By adjusting the structural geometry, the trapped magnetic resonance becomes transparent with little resonance absorption when it happens in the dipolar resonance regime, a phenomenon so-called plasmonic analogue of electromagnetically induced transparency (EIT). This planar EIT-like metamaterial offers a great geometry simplification by combining the radiant and subradiant resonant modes in a single double-bar resonator.

[1]  Stefan Linden,et al.  Coupling effects in low-symmetry planar split-ring resonator arrays. , 2009, Optics letters.

[2]  Ewold Verhagen,et al.  Electric and magnetic dipole coupling in near-infrared split-ring metamaterial arrays. , 2009, Physical review letters.

[3]  P. Nussenzveig,et al.  Classical analog of electromagnetically induced transparency , 2001, quant-ph/0107061.

[4]  L. J. Wang,et al.  Gain-assisted superluminal light propagation , 2000, Nature.

[5]  Peter Nordlander,et al.  Heterodimers: plasmonic properties of mismatched nanoparticle pairs. , 2010, ACS nano.

[6]  Ieng-Wai Un,et al.  Asymmetric coupling between subradiant and superradiant plasmonic resonances and its enhanced sensing performance. , 2009, Optics express.

[7]  S. M. Wang,et al.  Coupled magnetic plasmons in metamaterials , 2009 .

[8]  Shi-ning Zhu,et al.  Negative refraction with magnetic resonance in a metallic double-ring metamaterial , 2008 .

[9]  F M Wang,et al.  Metamaterial of rod pairs standing on gold plate and its negative refraction property in the far-infrared frequency regime. , 2007, Physical review. E, Statistical, nonlinear, and soft matter physics.

[10]  M. Kafesaki,et al.  Electric coupling to the magnetic resonance of split ring resonators , 2004 .

[11]  C. Soukoulis,et al.  Low-loss metamaterials based on classical electromagnetically induced transparency. , 2008, Physical review letters.

[12]  Nikolay I. Zheludev,et al.  Metamaterial with polarization and direction insensitive resonant transmission response mimicking electromagnetically induced transparency , 2009 .

[13]  L. J. Wang,et al.  Transparent anomalous dispersion and superluminal light-pulse propagation at a negative group velocity , 2001 .

[14]  N I Zheludev,et al.  Sharp trapped-mode resonances in planar metamaterials with a broken structural symmetry. , 2007, Physical review letters.

[15]  J. Marangos,et al.  Electromagnetically induced transparency : Optics in coherent media , 2005 .

[16]  Lei Zhang,et al.  Planar designs for electromagnetically induced transparency in metamaterials. , 2009, Optics express.

[17]  V. Yannopapas.  Sign of the refractive index in lossy metamaterials , 2009 .

[18]  Harald Giessen,et al.  Plasmonic analogue of electromagnetically induced transparency at the Drude damping limit. , 2009, Nature materials.

[19]  Zhi-Hong Zhu,et al.  Optical loss compensation in a bulk left-handed metamaterial by the gain in quantum dots , 2010 .

[20]  F. Lederer,et al.  Coupling between a dark and a bright eigenmode in a terahertz metamaterial , 2009, 0901.0365.

[21]  Y. Wang,et al.  Plasmon-induced transparency in metamaterials. , 2008, Physical review letters.

[22]  Cheng Sun,et al.  Magnetic plasmon hybridization and optical activity at optical frequencies in metallic nanostructures , 2007 .

[23]  H. Liu,et al.  Coupling effect of magnetic polariton in perforated metal/dielectric layered metamaterials and its influence on negative refraction transmission. , 2006, Optics express.

[24]  N. Vitanov,et al.  Electromagnetically induced transparency and slow light in an array of metallic nanoparticles , 2009 .

[25]  U. Eigenthaler,et al.  Planar metamaterial analogue of electromagnetically induced transparency for plasmonic sensing. , 2010, Nano letters.

[26]  Peter Nordlander,et al.  Symmetry breaking in plasmonic nanocavities: subradiant LSPR sensing and a tunable Fano resonance. , 2008, Nano letters.

[27]  N. Zheludev,et al.  Metamaterial analog of electromagnetically induced transparency. , 2008, Physical review letters.

[28]  Yasin Ekinci,et al.  Symmetry breaking in a plasmonic metamaterial at optical wavelength. , 2008, Nano letters.