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[CrossRef]

J. Hao, W. Yan, and M. Qiu, “Super-reflection and cloaking based on zero index metamaterial,” Appl. Phys. Lett.96, 101109 (2010).

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[CrossRef]

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[CrossRef]

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[CrossRef]

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[CrossRef]

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[CrossRef]

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[CrossRef]

B. Edwards, A. Alù, M. G. Silveirinha, and N. Engheta, “Reflectionless sharp bends and corners in waveguides using epsilon-near-zero effects,” J. Appl. Phys.105, 044905 (2009).

[CrossRef]

B. Edwards, A. Alù, M. Young, M. Silveirinha, and N. Engheta, “Experimental verification of epsilon-near-zero metamaterial coupling and energy squeezing using a microwave waveguide,” Phys. Rev. Lett.100, 033903 (2008).

[CrossRef]
[PubMed]

A. Alù, M. G. Silveirinha, and N. Engheta, “Transmission-line analysis of ε-near-zero–filled narrow channels,” Phys. Rev. E78, 016604 (2008).

[CrossRef]

A. Alù, M. G. Silveirinha, A. Salandrino, and N. Engheta, “Epsilon-near-zero metamaterials and electromagnetic sources: Tailoring the radiation phase pattern,” Phys. Rev. B75, 155410 (2007).

[CrossRef]

A. Veltri and A. Aradian, “Optical response of a metallic nanoparticle immersed in a medium with optical gain,” Phys. Rev. B85, 115429 (2012).

[CrossRef]

S. Arslanagic, “Power flow in the interior and exterior of cylindrical coated nanoparticles,” Appl. Phys. A109, 921–925 (2012).

[CrossRef]

S. Arslanagic and R. W. Ziolkowki, “Achieve coated nanoparticles: impact of plasmonic material choice,” Appl. Phys. A103, 795–798 (2011).

[CrossRef]

S. Arslanagic, Y. Liu, R. Malureanu, and R. W. Ziolkowki, “Impact of the excitation source and plasmonic material on cylindrical active coated nano-particles,” Sensors11, 9109–9120 (2011).

[CrossRef]
[PubMed]

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[CrossRef]

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[CrossRef]

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[CrossRef]

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[CrossRef]

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[CrossRef]

A. Della Villa, S. Enoch, G. Tayeb, V. Pierro, V. Galdi, and F. Capolino, “Band gap formation and multiple scattering in photonic quasicrystals with a Penrose-type lattice,” Phys. Rev. Lett.94, 183903 (2005).

[CrossRef]
[PubMed]

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[CrossRef]

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[CrossRef]
[PubMed]

Y. Xu and H. Chen, “Total reflection and transmission by epsilon-near-zero metamaterials with defects,” Appl. Phys. Lett.98, 113501 (2011).

[CrossRef]

J. Luo, P. Xu, H. Y. Chen, B. Hou, L. Gao, and Y. Lai, “Realizing almost perfect bending waveguides with anisotropic epsilon-near-zero metamaterials,” Appl. Phys. Lett.100, 221903 (2012).

[CrossRef]

V. C. Nguyen, L. Chen, and K. Halterman, “Total transmission and total reflection by zero index metamaterials with defects,” Phys. Rev. Lett.105, 233908 (2010).

[CrossRef]

S. L. Chen, K. H. Lin, and R. Mittra, “Miniature and near-3D omnidirectional radiation pattern RFID tag antenna design,” Electron. Lett.45, 923–924 (2009).

[CrossRef]

Y. G. Ma, P. Wang, X. Chen, and C. K. Ong, “Near-field plane-wave-like beam emitting antenna fabricated by anisotropic metamaterial,” Appl. Phys. Lett.94, 044107 (2009).

[CrossRef]

Z. C. Chen, R. Mohsen, Y. D. Gong, T. W. Chong, and M. H. Hong, “Realization of variable three-dimensional terahertz metamaterial tubes for passive resonance tunability,” Adv. Mater.24, OP143–OP147 (2012).

[CrossRef]

Q. Cheng, W. X. Jiang, and T. J. Cui, “Spatial power combination for omnidirectional radiation via anisotropic metamaterials,” Phys. Rev. Lett.108, 213903 (2012).

[CrossRef]
[PubMed]

Q. Cheng, W. X. Jiang, and T. J. Cui, “Multi-beam generations at pre-designed directions based on anisotropic zero-index metamaterials,” Appl. Phys. Lett.99, 131913 (2011).

[CrossRef]

Q. Cheng, W. X. Jiang, and T. J. Cui, “Radiation of planar electromagnetic waves by a line source in anisotropic metamaterials,” J. Phys. D: Appl. Phys.43, 335406 (2010).

[CrossRef]

R. P. Liu, Q. Cheng, T. Hand, J. J. Mock, T. J. Cui, S. A. Cummer, and D. R. Smith, “Experimental demonstration of electromagnetic tunneling through an epsilon-near-zero metamaterial at microwave frequencies,” Phys. Rev. Lett.100, 023903 (2008).

[CrossRef]
[PubMed]

Q. Cheng, R. P. Liu, D. Huang, T. J. Cui, and D. R. Smith, “Circuit verification of tunneling effect in zero permittivity medium,” Appl. Phys. Lett.91, 2341052007.

S. Xiao, V. P. Drachev, A. V. Kildishev, X. Ni, U. K. Chettiar, H. Yuan, and V. M. Shalaev, “Loss-free and active optical negative-index metamaterials,” Nature (London)466, 735–738 (2010).

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Z. C. Chen, R. Mohsen, Y. D. Gong, T. W. Chong, and M. H. Hong, “Realization of variable three-dimensional terahertz metamaterial tubes for passive resonance tunability,” Adv. Mater.24, OP143–OP147 (2012).

[CrossRef]

R. A. York and R. C. Compton, “Quasi-optical power combining using mutually synchronized oscillator arrays,” IEEE Trans. Microwave Theory Tech.39, 1000–1009 (1991).

[CrossRef]

Q. Cheng, W. X. Jiang, and T. J. Cui, “Spatial power combination for omnidirectional radiation via anisotropic metamaterials,” Phys. Rev. Lett.108, 213903 (2012).

[CrossRef]
[PubMed]

Q. Cheng, W. X. Jiang, and T. J. Cui, “Multi-beam generations at pre-designed directions based on anisotropic zero-index metamaterials,” Appl. Phys. Lett.99, 131913 (2011).

[CrossRef]

Q. Cheng, W. X. Jiang, and T. J. Cui, “Radiation of planar electromagnetic waves by a line source in anisotropic metamaterials,” J. Phys. D: Appl. Phys.43, 335406 (2010).

[CrossRef]

R. P. Liu, Q. Cheng, T. Hand, J. J. Mock, T. J. Cui, S. A. Cummer, and D. R. Smith, “Experimental demonstration of electromagnetic tunneling through an epsilon-near-zero metamaterial at microwave frequencies,” Phys. Rev. Lett.100, 023903 (2008).

[CrossRef]
[PubMed]

Q. Cheng, R. P. Liu, D. Huang, T. J. Cui, and D. R. Smith, “Circuit verification of tunneling effect in zero permittivity medium,” Appl. Phys. Lett.91, 2341052007.

R. P. Liu, Q. Cheng, T. Hand, J. J. Mock, T. J. Cui, S. A. Cummer, and D. R. Smith, “Experimental demonstration of electromagnetic tunneling through an epsilon-near-zero metamaterial at microwave frequencies,” Phys. Rev. Lett.100, 023903 (2008).

[CrossRef]
[PubMed]

M. P. DeLisio and R. A. York, “Quasi-optical and spatial power combining,” IEEE Trans. Microwave Theory Tech.50, 929–936 (2002).

[CrossRef]

A. Della Villa, S. Enoch, G. Tayeb, V. Pierro, V. Galdi, and F. Capolino, “Band gap formation and multiple scattering in photonic quasicrystals with a Penrose-type lattice,” Phys. Rev. Lett.94, 183903 (2005).

[CrossRef]
[PubMed]

S. Xiao, V. P. Drachev, A. V. Kildishev, X. Ni, U. K. Chettiar, H. Yuan, and V. M. Shalaev, “Loss-free and active optical negative-index metamaterials,” Nature (London)466, 735–738 (2010).

[CrossRef]

B. Edwards, A. Alù, M. G. Silveirinha, and N. Engheta, “Reflectionless sharp bends and corners in waveguides using epsilon-near-zero effects,” J. Appl. Phys.105, 044905 (2009).

[CrossRef]

B. Edwards, A. Alù, M. Young, M. Silveirinha, and N. Engheta, “Experimental verification of epsilon-near-zero metamaterial coupling and energy squeezing using a microwave waveguide,” Phys. Rev. Lett.100, 033903 (2008).

[CrossRef]
[PubMed]

B. Edwards, A. Alù, M. G. Silveirinha, and N. Engheta, “Reflectionless sharp bends and corners in waveguides using epsilon-near-zero effects,” J. Appl. Phys.105, 044905 (2009).

[CrossRef]

B. Edwards, A. Alù, M. Young, M. Silveirinha, and N. Engheta, “Experimental verification of epsilon-near-zero metamaterial coupling and energy squeezing using a microwave waveguide,” Phys. Rev. Lett.100, 033903 (2008).

[CrossRef]
[PubMed]

A. Alù, M. G. Silveirinha, and N. Engheta, “Transmission-line analysis of ε-near-zero–filled narrow channels,” Phys. Rev. E78, 016604 (2008).

[CrossRef]

A. Alù, M. G. Silveirinha, A. Salandrino, and N. Engheta, “Epsilon-near-zero metamaterials and electromagnetic sources: Tailoring the radiation phase pattern,” Phys. Rev. B75, 155410 (2007).

[CrossRef]

M. G. Silveirinha and N. Engheta, “Theory of supercoupling, squeezing wave energy, and field confinement in narrow channels and tight bends using ε near-zero metamaterials,” Phys. Rev. B76, 245109 (2007).

[CrossRef]

M. Silveirinha and N. Engheta, “Tunneling of electromagnetic energy through subwavelength channels and bends using ε-near-zero materials,” Phys. Rev. Lett.97, 157403 (2006).

[CrossRef]

M. Silveirinha and Nader Engheta, “Design of matched zero-index metamaterials using nonmagnetic inclusions in epsilon-near-zero media,” Phys. Rev. B,75, 075119 (2007).

[CrossRef]

A. Della Villa, S. Enoch, G. Tayeb, V. Pierro, V. Galdi, and F. Capolino, “Band gap formation and multiple scattering in photonic quasicrystals with a Penrose-type lattice,” Phys. Rev. Lett.94, 183903 (2005).

[CrossRef]
[PubMed]

S. Enoch, G. Tayeb, P. Sabouroux, N. Guerin, and P. Vincent, “A metamaterial for directive emission,” Phys. Rev. Lett.89, 213902 (2002).

[CrossRef]
[PubMed]

S. M. Feng, “Loss-induced omnidirectional bending to the normal in ε-near-zero metamaterials,” Phys. Rev. Lett.108, 193904 (2012).

[CrossRef]

A. Della Villa, S. Enoch, G. Tayeb, V. Pierro, V. Galdi, and F. Capolino, “Band gap formation and multiple scattering in photonic quasicrystals with a Penrose-type lattice,” Phys. Rev. Lett.94, 183903 (2005).

[CrossRef]
[PubMed]

J. Luo, P. Xu, H. Y. Chen, B. Hou, L. Gao, and Y. Lai, “Realizing almost perfect bending waveguides with anisotropic epsilon-near-zero metamaterials,” Appl. Phys. Lett.100, 221903 (2012).

[CrossRef]

Y. X. Ni, L. Gao, and C. W. Qiu, “Achieving invisibility of homegeneous cylindrically anisotropic cylinders,” Plamonics5, 251–258 (2010).

[CrossRef]

N. Garcia, E. V. Ponizovskaya, and John Q. Xiao, “Zero permittivity materials: Band gaps at the visible,” Appl. Phys. Lett.80, 1120–1122 (2002).

[CrossRef]

Z. C. Chen, R. Mohsen, Y. D. Gong, T. W. Chong, and M. H. Hong, “Realization of variable three-dimensional terahertz metamaterial tubes for passive resonance tunability,” Adv. Mater.24, OP143–OP147 (2012).

[CrossRef]

S. Enoch, G. Tayeb, P. Sabouroux, N. Guerin, and P. Vincent, “A metamaterial for directive emission,” Phys. Rev. Lett.89, 213902 (2002).

[CrossRef]
[PubMed]

V. C. Nguyen, L. Chen, and K. Halterman, “Total transmission and total reflection by zero index metamaterials with defects,” Phys. Rev. Lett.105, 233908 (2010).

[CrossRef]

R. P. Liu, Q. Cheng, T. Hand, J. J. Mock, T. J. Cui, S. A. Cummer, and D. R. Smith, “Experimental demonstration of electromagnetic tunneling through an epsilon-near-zero metamaterial at microwave frequencies,” Phys. Rev. Lett.100, 023903 (2008).

[CrossRef]
[PubMed]

X. Q. Huang, Y. Lai, Z. H. Hang, H. H. Zheng, and C. T. Chan, “Dirac cones induced by accidental degeneracy in photonic crystals and zero-refractive-index materials,” Nat. Mater.10, 582–586 (2011).

[CrossRef]
[PubMed]

J. Hao, W. Yan, and M. Qiu, “Super-reflection and cloaking based on zero index metamaterial,” Appl. Phys. Lett.96, 101109 (2010).

[CrossRef]

Z. C. Chen, R. Mohsen, Y. D. Gong, T. W. Chong, and M. H. Hong, “Realization of variable three-dimensional terahertz metamaterial tubes for passive resonance tunability,” Adv. Mater.24, OP143–OP147 (2012).

[CrossRef]

J. Luo, P. Xu, H. Y. Chen, B. Hou, L. Gao, and Y. Lai, “Realizing almost perfect bending waveguides with anisotropic epsilon-near-zero metamaterials,” Appl. Phys. Lett.100, 221903 (2012).

[CrossRef]

Q. Cheng, R. P. Liu, D. Huang, T. J. Cui, and D. R. Smith, “Circuit verification of tunneling effect in zero permittivity medium,” Appl. Phys. Lett.91, 2341052007.

X. Q. Huang, Y. Lai, Z. H. Hang, H. H. Zheng, and C. T. Chan, “Dirac cones induced by accidental degeneracy in photonic crystals and zero-refractive-index materials,” Nat. Mater.10, 582–586 (2011).

[CrossRef]
[PubMed]

Z. Huang, T. Koschny, and C. M. Soukoulis, “Theory of pump-probe experiments of metallic metamaterials coupled to a gain medium,” Phys. Rev. Lett.108, 187402 (2012).

[CrossRef]
[PubMed]

Y. Yuan, L. F. Shen, L. X. Ran, T. Jiang, J. T. Huangfu, and J. A. Kong, “Directive emission based on anisotropic metamaterials,” Phys. Rev. A77, 053821 (2008).

[CrossRef]

C. F. Bohren and D. R. Huffman, Absorption and Scattering of Light by Small Particles (John Wiley, 1983).

S. Nogi, J. S. Lin, and T. Itoh, “Mode analysis and stabilization of a spatial power combining array with strongly coupled oscillators,” IEEE Trans. Microwave Theory Tech.41, 1827–1837 (1993).

[CrossRef]

J. Ahn, H. Jang, H. Moon, J. W. Lee, and B. Lee, “Inductively coupled compact RFID tag antenna at 910 MHz with near-isotropic radar cross-section (RCS) patterns,” IEEE Antennas Wirel. Propag. Lett.6, 518–520 (2007).

[CrossRef]

Y. Yuan, L. F. Shen, L. X. Ran, T. Jiang, J. T. Huangfu, and J. A. Kong, “Directive emission based on anisotropic metamaterials,” Phys. Rev. A77, 053821 (2008).

[CrossRef]

Q. Cheng, W. X. Jiang, and T. J. Cui, “Spatial power combination for omnidirectional radiation via anisotropic metamaterials,” Phys. Rev. Lett.108, 213903 (2012).

[CrossRef]
[PubMed]

Q. Cheng, W. X. Jiang, and T. J. Cui, “Multi-beam generations at pre-designed directions based on anisotropic zero-index metamaterials,” Appl. Phys. Lett.99, 131913 (2011).

[CrossRef]

Q. Cheng, W. X. Jiang, and T. J. Cui, “Radiation of planar electromagnetic waves by a line source in anisotropic metamaterials,” J. Phys. D: Appl. Phys.43, 335406 (2010).

[CrossRef]

T. J. Judasz and B. B. Balsley, “Improved theoretical and experimental models for the coaxial colinear antenna,” IEEE Trans. Antennas and Propagat.37, 289–296 (1989).

[CrossRef]

S. Xiao, V. P. Drachev, A. V. Kildishev, X. Ni, U. K. Chettiar, H. Yuan, and V. M. Shalaev, “Loss-free and active optical negative-index metamaterials,” Nature (London)466, 735–738 (2010).

[CrossRef]

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A. Alù, M. G. Silveirinha, A. Salandrino, and N. Engheta, “Epsilon-near-zero metamaterials and electromagnetic sources: Tailoring the radiation phase pattern,” Phys. Rev. B75, 155410 (2007).

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M. G. Silveirinha and N. Engheta, “Theory of supercoupling, squeezing wave energy, and field confinement in narrow channels and tight bends using ε near-zero metamaterials,” Phys. Rev. B76, 245109 (2007).

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R. P. Liu, Q. Cheng, T. Hand, J. J. Mock, T. J. Cui, S. A. Cummer, and D. R. Smith, “Experimental demonstration of electromagnetic tunneling through an epsilon-near-zero metamaterial at microwave frequencies,” Phys. Rev. Lett.100, 023903 (2008).

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[CrossRef]
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Y. Yuan, N. Wang, and J. H. Lim, “On the omnidirectional radiation via radially anisotropic zero-index metamaterials,” Europhys. Lett.100, 34005 (2012).

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Y. G. Ma, P. Wang, X. Chen, and C. K. Ong, “Near-field plane-wave-like beam emitting antenna fabricated by anisotropic metamaterial,” Appl. Phys. Lett.94, 044107 (2009).

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J. Luo, P. Xu, H. Y. Chen, B. Hou, L. Gao, and Y. Lai, “Realizing almost perfect bending waveguides with anisotropic epsilon-near-zero metamaterials,” Appl. Phys. Lett.100, 221903 (2012).

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H. X. Xu, G. M. Wang, M. Q. Qi, and Z. M. Xu, “A metamaterial antenna with frequency-scanning omnidirectional radiation patterns,” Appl. Phys. Lett.101, 173501 (2012).

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[CrossRef]
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[CrossRef]

Y. Yuan, N. Wang, and J. H. Lim, “On the omnidirectional radiation via radially anisotropic zero-index metamaterials,” Europhys. Lett.100, 34005 (2012).

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[CrossRef]

J. Hao, W. Yan, and M. Qiu, “Super-reflection and cloaking based on zero index metamaterial,” Appl. Phys. Lett.96, 101109 (2010).

[CrossRef]

Y. Xu and H. Chen, “Total reflection and transmission by epsilon-near-zero metamaterials with defects,” Appl. Phys. Lett.98, 113501 (2011).

[CrossRef]

W. R. Zhu, I. D. Rukhlenko, and M. Premaratne, “Light amplification in zero-index metamaterial with gain inserts,” Appl. Phys. Lett.101, 031907 (2012).

[CrossRef]

H. X. Xu, G. M. Wang, M. Q. Qi, and Z. M. Xu, “A metamaterial antenna with frequency-scanning omnidirectional radiation patterns,” Appl. Phys. Lett.101, 173501 (2012).

[CrossRef]

N. Garcia, E. V. Ponizovskaya, and John Q. Xiao, “Zero permittivity materials: Band gaps at the visible,” Appl. Phys. Lett.80, 1120–1122 (2002).

[CrossRef]

Y. G. Ma, P. Wang, X. Chen, and C. K. Ong, “Near-field plane-wave-like beam emitting antenna fabricated by anisotropic metamaterial,” Appl. Phys. Lett.94, 044107 (2009).

[CrossRef]

Q. Cheng, W. X. Jiang, and T. J. Cui, “Multi-beam generations at pre-designed directions based on anisotropic zero-index metamaterials,” Appl. Phys. Lett.99, 131913 (2011).

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W. R. Zhu, I. D. Rukhlenko, and M. Premaratne, “Application of zero-index metamaterials for surface plasmon guiding,” Appl. Phys. Lett.102, 011910 (2013).

[CrossRef]

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[CrossRef]

Y. Yuan, N. Wang, and J. H. Lim, “On the omnidirectional radiation via radially anisotropic zero-index metamaterials,” Europhys. Lett.100, 34005 (2012).

[CrossRef]

J. Ahn, H. Jang, H. Moon, J. W. Lee, and B. Lee, “Inductively coupled compact RFID tag antenna at 910 MHz with near-isotropic radar cross-section (RCS) patterns,” IEEE Antennas Wirel. Propag. Lett.6, 518–520 (2007).

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[CrossRef]

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[CrossRef]

B. Edwards, A. Alù, M. G. Silveirinha, and N. Engheta, “Reflectionless sharp bends and corners in waveguides using epsilon-near-zero effects,” J. Appl. Phys.105, 044905 (2009).

[CrossRef]

S. Arslanagic and R. W. Ziolkowki, “Active coated nano-particle excited by an arbitrarily located electric Hertzian dipolelresonance and transparency effects,” J. Opt.12, 024014 (2010).

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[CrossRef]
[PubMed]

S. Xiao, V. P. Drachev, A. V. Kildishev, X. Ni, U. K. Chettiar, H. Yuan, and V. M. Shalaev, “Loss-free and active optical negative-index metamaterials,” Nature (London)466, 735–738 (2010).

[CrossRef]

Y. Yuan, L. F. Shen, L. X. Ran, T. Jiang, J. T. Huangfu, and J. A. Kong, “Directive emission based on anisotropic metamaterials,” Phys. Rev. A77, 053821 (2008).

[CrossRef]

M. G. Silveirinha and P. A. Belov, “Spatial dispersion in lattices of split ring resonators with permeability near zero,” Phys. Rev. B77, 233104 (2008).

[CrossRef]

Y. Jin, P. Zhang, and S. L. He, “Squeezing electromagnetic energy with a dielectric split ring inside a permeability-near-zero metamaterial,” Phys. Rev. B81, 085117 (2010).

[CrossRef]

A. Alù, M. G. Silveirinha, A. Salandrino, and N. Engheta, “Epsilon-near-zero metamaterials and electromagnetic sources: Tailoring the radiation phase pattern,” Phys. Rev. B75, 155410 (2007).

[CrossRef]

M. G. Silveirinha and N. Engheta, “Theory of supercoupling, squeezing wave energy, and field confinement in narrow channels and tight bends using ε near-zero metamaterials,” Phys. Rev. B76, 245109 (2007).

[CrossRef]

A. Veltri and A. Aradian, “Optical response of a metallic nanoparticle immersed in a medium with optical gain,” Phys. Rev. B85, 115429 (2012).

[CrossRef]

M. Silveirinha and Nader Engheta, “Design of matched zero-index metamaterials using nonmagnetic inclusions in epsilon-near-zero media,” Phys. Rev. B,75, 075119 (2007).

[CrossRef]

R. W. Ziolkowski, “Propagation in and scattering from a matched metamaterial having a zero index of refraction,” Phys. Rev. E70, 046608 (2004).

[CrossRef]

A. Alù, M. G. Silveirinha, and N. Engheta, “Transmission-line analysis of ε-near-zero–filled narrow channels,” Phys. Rev. E78, 016604 (2008).

[CrossRef]

R. P. Liu, Q. Cheng, T. Hand, J. J. Mock, T. J. Cui, S. A. Cummer, and D. R. Smith, “Experimental demonstration of electromagnetic tunneling through an epsilon-near-zero metamaterial at microwave frequencies,” Phys. Rev. Lett.100, 023903 (2008).

[CrossRef]
[PubMed]

M. Silveirinha and N. Engheta, “Tunneling of electromagnetic energy through subwavelength channels and bends using ε-near-zero materials,” Phys. Rev. Lett.97, 157403 (2006).

[CrossRef]

B. Edwards, A. Alù, M. Young, M. Silveirinha, and N. Engheta, “Experimental verification of epsilon-near-zero metamaterial coupling and energy squeezing using a microwave waveguide,” Phys. Rev. Lett.100, 033903 (2008).

[CrossRef]
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[CrossRef]
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[CrossRef]

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[CrossRef]
[PubMed]

Z. Huang, T. Koschny, and C. M. Soukoulis, “Theory of pump-probe experiments of metallic metamaterials coupled to a gain medium,” Phys. Rev. Lett.108, 187402 (2012).

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