Electromagnetic Shielding and Energy Concentration Using Zero-Index Metamaterials

We propose a technique for electromagnetic shielding by combining zero-index metamaterials (ZIMs) and electromagnetic interference. Because the electric field inside the ZIMs can be zero, dielectric breakdown may be avoided, and the shield cover can be ultrathin, which may be less than 1% of the operating wavelength. In addition, we propose an energy concentrator made of ZIMs to confine the electromagnetic energy to a small zone based on the intrinsic refractive properties of ZIMs. This property may have potential in waveguiding applications.

[1]  Qiang Cheng,et al.  Experimental demonstration of electromagnetic tunneling through an epsilon-near-zero metamaterial at microwave frequencies. , 2008, Physical review letters.

[2]  Alessandro Salandrino,et al.  Epsilon-near-zero metamaterials and electromagnetic sources: Tailoring the radiation phase pattern , 2007 .

[3]  Andrea Alù,et al.  Dielectric sensing in ε-near-zero narrow waveguide channels , 2008 .

[4]  Min Qiu,et al.  Super-reflection and cloaking based on zero index metamaterial , 2009, 0906.5543.

[5]  Andrea Alù,et al.  Experimental verification of epsilon-near-zero metamaterial coupling and energy squeezing using a microwave waveguide. , 2008, Physical review letters.

[6]  Nader Engheta,et al.  Theory of supercoupling, squeezing wave energy, and field confinement in narrow channels and tight bends using ε near-zero metamaterials , 2007 .

[7]  Multi-passband tunneling effect in multilayered Epsilon-Near-Zero Metamaterials. , 2009, Optics express.

[8]  Nader Engheta,et al.  Tunneling of electromagnetic energy through subwavelength channels and bends using epsilon-near-zero materials. , 2006, Physical review letters.

[9]  G. Tayeb,et al.  A metamaterial for directive emission. , 2002, Physical review letters.

[10]  D. A. Dunnett.  Classical Electrodynamics , 2020, Nature.

[11]  P. Sheng,et al.  Photonic band gap from a stack of positive and negative index materials. , 2003, Physical review letters.

[12]  Nader Engheta,et al.  Design of matched zero-index metamaterials using nonmagnetic inclusions in epsilon-near-zero media , 2007 .

[13]  Andrea Alù,et al.  Transmission-line analysis of epsilon -near-zero-filled narrow channels. , 2008, Physical review. E, Statistical, nonlinear, and soft matter physics.

[14]  Qiang Cheng,et al.  Circuit verification of tunneling effect in zero permittivity medium , 2007 .

[15]  Richard W Ziolkowski,et al.  Propagation in and scattering from a matched metamaterial having a zero index of refraction. , 2004, Physical review. E, Statistical, nonlinear, and soft matter physics.