Abstract

We describe a novel type of electromagnetic cloak designed to conceal an object in a corner, and demonstrate its excellent performance by employing direct numerical simulation. Furthermore, we study the angular dependence and the effect of loss on the invisibility performance and compare ideal and simplified cloaks. The proposed structure has homogeneous constitutive parameters, which greatly simplifies practical realization.

© 2011 OSA

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References

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  1. J. B. Pendry, D. Schurig, and D. R. Smith, “Controlling Electromagnetic Fields,” Science 312, 1780–1782 (2006)
    [CrossRef] [PubMed]
  2. U. Leonhardt, “Optical Conformal Mapping,” Science 312, 1777–1780 (2006)
    [CrossRef] [PubMed]
  3. D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, “Composite Medium with Simultaneously Negative Permeability and Permittivity,” Phys. Rev. Lett. 84, 4184–4187 (2000)
    [CrossRef] [PubMed]
  4. D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “Metamaterial Electromagnetic Cloak at Microwave Frequencies,” Science 314, 977–980 (2006)
    [CrossRef] [PubMed]
  5. J. Li and J. B. Pendry, “Hiding under the carpet: a new strategy for cloaking,” Phys. Rev. Lett. 101, 203901 (2008).
    [CrossRef] [PubMed]
  6. Y. Luo, H. Chen, J. Zhang, L. Ran, and J. A. Kong, “Design and analytical full-wave validation of the invisibility cloaks, concentrators, and field rotators created with a general class of transformations”, Phys. Rev. B 77, 125127 (2008)
    [CrossRef]
  7. Y. Lai, J. Ng, H.Y. Chen, D. Han, J. Xiao, Z. Zhang, and C. T. Chan, “Illusion Optics: The Optical Transformation of an Object into Another Object”, Phys. Rev. Lett. 102, 253902 (2009)
    [CrossRef] [PubMed]
  8. W. Cai, U. Chettiar, A. V. Kildishev, and V. M. Shalaev, “Optical cloaking with metamaterials,” Nature Photonics 1, 224–227(2007)
    [CrossRef]
  9. R. Liu, C. Ji, J. J. Mock, J. Y. Chin, T. J. Cui, and D. R. Smith, “Broadband Ground-Plane Cloak”, Science 323, 366–369 (2009)
    [CrossRef] [PubMed]
  10. X. Chen, Y. Luo, J. Zhang, K. Jiang, J. B. Pendry, and S. Zhang, “Macroscopic invisibility cloaking of visible light,” Nature Commun. 2, 176 (2011)
    [CrossRef]
  11. B. Zhang, Y. Luo, X. Liu, and G. Barbastathis, “Macroscopic invisibility cloak for visible light,” Phys. Rev. Lett. 106, 033901 (2011)
    [CrossRef] [PubMed]
  12. Y. Luo, J. Zhang, H. Chen, L. Ran, B. Wu, and J. A. Kong, “A rigorous analysis of plane-tansformed invisiblity cloaks,” IEEE Tran. Antenna. Propag. 57, 3926–3933, (2009).
    [CrossRef]
  13. W. Li, J. Guan, Z. Sun, W. Wang, and Q. Zhang, “A near-perfect invisibility cloak constructed with homogeneous materials,” Opt. Express 17, 23410–23416, (2009).
    [CrossRef]
  14. J. Zhang, L. Liu, Y. Luo, S. Zhang, and N. A. Mortensen, “Homogeneous optical cloak constructed with unifrom layered structures,” Opt. Express 19, 8625–8631, (2011).
    [CrossRef] [PubMed]
  15. D. P. Gaillot, C. Croënne, F. Zhang, and D. Lippens, “Transformation optics for the full dielectric electromagnetic cloak and metal–dielectric planar hyperlens,” New J. Phys. 10, 115039, (2008).
    [CrossRef]

2011 (3)

X. Chen, Y. Luo, J. Zhang, K. Jiang, J. B. Pendry, and S. Zhang, “Macroscopic invisibility cloaking of visible light,” Nature Commun. 2, 176 (2011)
[CrossRef]

B. Zhang, Y. Luo, X. Liu, and G. Barbastathis, “Macroscopic invisibility cloak for visible light,” Phys. Rev. Lett. 106, 033901 (2011)
[CrossRef] [PubMed]

J. Zhang, L. Liu, Y. Luo, S. Zhang, and N. A. Mortensen, “Homogeneous optical cloak constructed with unifrom layered structures,” Opt. Express 19, 8625–8631, (2011).
[CrossRef] [PubMed]

2009 (4)

Y. Luo, J. Zhang, H. Chen, L. Ran, B. Wu, and J. A. Kong, “A rigorous analysis of plane-tansformed invisiblity cloaks,” IEEE Tran. Antenna. Propag. 57, 3926–3933, (2009).
[CrossRef]

W. Li, J. Guan, Z. Sun, W. Wang, and Q. Zhang, “A near-perfect invisibility cloak constructed with homogeneous materials,” Opt. Express 17, 23410–23416, (2009).
[CrossRef]

Y. Lai, J. Ng, H.Y. Chen, D. Han, J. Xiao, Z. Zhang, and C. T. Chan, “Illusion Optics: The Optical Transformation of an Object into Another Object”, Phys. Rev. Lett. 102, 253902 (2009)
[CrossRef] [PubMed]

R. Liu, C. Ji, J. J. Mock, J. Y. Chin, T. J. Cui, and D. R. Smith, “Broadband Ground-Plane Cloak”, Science 323, 366–369 (2009)
[CrossRef] [PubMed]

2008 (3)

J. Li and J. B. Pendry, “Hiding under the carpet: a new strategy for cloaking,” Phys. Rev. Lett. 101, 203901 (2008).
[CrossRef] [PubMed]

Y. Luo, H. Chen, J. Zhang, L. Ran, and J. A. Kong, “Design and analytical full-wave validation of the invisibility cloaks, concentrators, and field rotators created with a general class of transformations”, Phys. Rev. B 77, 125127 (2008)
[CrossRef]

D. P. Gaillot, C. Croënne, F. Zhang, and D. Lippens, “Transformation optics for the full dielectric electromagnetic cloak and metal–dielectric planar hyperlens,” New J. Phys. 10, 115039, (2008).
[CrossRef]

2007 (1)

W. Cai, U. Chettiar, A. V. Kildishev, and V. M. Shalaev, “Optical cloaking with metamaterials,” Nature Photonics 1, 224–227(2007)
[CrossRef]

2006 (3)

D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “Metamaterial Electromagnetic Cloak at Microwave Frequencies,” Science 314, 977–980 (2006)
[CrossRef] [PubMed]

J. B. Pendry, D. Schurig, and D. R. Smith, “Controlling Electromagnetic Fields,” Science 312, 1780–1782 (2006)
[CrossRef] [PubMed]

U. Leonhardt, “Optical Conformal Mapping,” Science 312, 1777–1780 (2006)
[CrossRef] [PubMed]

2000 (1)

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, “Composite Medium with Simultaneously Negative Permeability and Permittivity,” Phys. Rev. Lett. 84, 4184–4187 (2000)
[CrossRef] [PubMed]

Barbastathis, G.

B. Zhang, Y. Luo, X. Liu, and G. Barbastathis, “Macroscopic invisibility cloak for visible light,” Phys. Rev. Lett. 106, 033901 (2011)
[CrossRef] [PubMed]

Cai, W.

W. Cai, U. Chettiar, A. V. Kildishev, and V. M. Shalaev, “Optical cloaking with metamaterials,” Nature Photonics 1, 224–227(2007)
[CrossRef]

Chan, C. T.

Y. Lai, J. Ng, H.Y. Chen, D. Han, J. Xiao, Z. Zhang, and C. T. Chan, “Illusion Optics: The Optical Transformation of an Object into Another Object”, Phys. Rev. Lett. 102, 253902 (2009)
[CrossRef] [PubMed]

Chen, H.

Y. Luo, J. Zhang, H. Chen, L. Ran, B. Wu, and J. A. Kong, “A rigorous analysis of plane-tansformed invisiblity cloaks,” IEEE Tran. Antenna. Propag. 57, 3926–3933, (2009).
[CrossRef]

Y. Luo, H. Chen, J. Zhang, L. Ran, and J. A. Kong, “Design and analytical full-wave validation of the invisibility cloaks, concentrators, and field rotators created with a general class of transformations”, Phys. Rev. B 77, 125127 (2008)
[CrossRef]

Chen, H.Y.

Y. Lai, J. Ng, H.Y. Chen, D. Han, J. Xiao, Z. Zhang, and C. T. Chan, “Illusion Optics: The Optical Transformation of an Object into Another Object”, Phys. Rev. Lett. 102, 253902 (2009)
[CrossRef] [PubMed]

Chen, X.

X. Chen, Y. Luo, J. Zhang, K. Jiang, J. B. Pendry, and S. Zhang, “Macroscopic invisibility cloaking of visible light,” Nature Commun. 2, 176 (2011)
[CrossRef]

Chettiar, U.

W. Cai, U. Chettiar, A. V. Kildishev, and V. M. Shalaev, “Optical cloaking with metamaterials,” Nature Photonics 1, 224–227(2007)
[CrossRef]

Chin, J. Y.

R. Liu, C. Ji, J. J. Mock, J. Y. Chin, T. J. Cui, and D. R. Smith, “Broadband Ground-Plane Cloak”, Science 323, 366–369 (2009)
[CrossRef] [PubMed]

Croënne, C.

D. P. Gaillot, C. Croënne, F. Zhang, and D. Lippens, “Transformation optics for the full dielectric electromagnetic cloak and metal–dielectric planar hyperlens,” New J. Phys. 10, 115039, (2008).
[CrossRef]

Cui, T. J.

R. Liu, C. Ji, J. J. Mock, J. Y. Chin, T. J. Cui, and D. R. Smith, “Broadband Ground-Plane Cloak”, Science 323, 366–369 (2009)
[CrossRef] [PubMed]

Cummer, S. A.

D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “Metamaterial Electromagnetic Cloak at Microwave Frequencies,” Science 314, 977–980 (2006)
[CrossRef] [PubMed]

Gaillot, D. P.

D. P. Gaillot, C. Croënne, F. Zhang, and D. Lippens, “Transformation optics for the full dielectric electromagnetic cloak and metal–dielectric planar hyperlens,” New J. Phys. 10, 115039, (2008).
[CrossRef]

Guan, J.

Han, D.

Y. Lai, J. Ng, H.Y. Chen, D. Han, J. Xiao, Z. Zhang, and C. T. Chan, “Illusion Optics: The Optical Transformation of an Object into Another Object”, Phys. Rev. Lett. 102, 253902 (2009)
[CrossRef] [PubMed]

Ji, C.

R. Liu, C. Ji, J. J. Mock, J. Y. Chin, T. J. Cui, and D. R. Smith, “Broadband Ground-Plane Cloak”, Science 323, 366–369 (2009)
[CrossRef] [PubMed]

Jiang, K.

X. Chen, Y. Luo, J. Zhang, K. Jiang, J. B. Pendry, and S. Zhang, “Macroscopic invisibility cloaking of visible light,” Nature Commun. 2, 176 (2011)
[CrossRef]

Justice, B. J.

D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “Metamaterial Electromagnetic Cloak at Microwave Frequencies,” Science 314, 977–980 (2006)
[CrossRef] [PubMed]

Kildishev, A. V.

W. Cai, U. Chettiar, A. V. Kildishev, and V. M. Shalaev, “Optical cloaking with metamaterials,” Nature Photonics 1, 224–227(2007)
[CrossRef]

Kong, J. A.

Y. Luo, J. Zhang, H. Chen, L. Ran, B. Wu, and J. A. Kong, “A rigorous analysis of plane-tansformed invisiblity cloaks,” IEEE Tran. Antenna. Propag. 57, 3926–3933, (2009).
[CrossRef]

Y. Luo, H. Chen, J. Zhang, L. Ran, and J. A. Kong, “Design and analytical full-wave validation of the invisibility cloaks, concentrators, and field rotators created with a general class of transformations”, Phys. Rev. B 77, 125127 (2008)
[CrossRef]

Lai, Y.

Y. Lai, J. Ng, H.Y. Chen, D. Han, J. Xiao, Z. Zhang, and C. T. Chan, “Illusion Optics: The Optical Transformation of an Object into Another Object”, Phys. Rev. Lett. 102, 253902 (2009)
[CrossRef] [PubMed]

Leonhardt, U.

U. Leonhardt, “Optical Conformal Mapping,” Science 312, 1777–1780 (2006)
[CrossRef] [PubMed]

Li, J.

J. Li and J. B. Pendry, “Hiding under the carpet: a new strategy for cloaking,” Phys. Rev. Lett. 101, 203901 (2008).
[CrossRef] [PubMed]

Li, W.

Lippens, D.

D. P. Gaillot, C. Croënne, F. Zhang, and D. Lippens, “Transformation optics for the full dielectric electromagnetic cloak and metal–dielectric planar hyperlens,” New J. Phys. 10, 115039, (2008).
[CrossRef]

Liu, L.

Liu, R.

R. Liu, C. Ji, J. J. Mock, J. Y. Chin, T. J. Cui, and D. R. Smith, “Broadband Ground-Plane Cloak”, Science 323, 366–369 (2009)
[CrossRef] [PubMed]

Liu, X.

B. Zhang, Y. Luo, X. Liu, and G. Barbastathis, “Macroscopic invisibility cloak for visible light,” Phys. Rev. Lett. 106, 033901 (2011)
[CrossRef] [PubMed]

Luo, Y.

B. Zhang, Y. Luo, X. Liu, and G. Barbastathis, “Macroscopic invisibility cloak for visible light,” Phys. Rev. Lett. 106, 033901 (2011)
[CrossRef] [PubMed]

X. Chen, Y. Luo, J. Zhang, K. Jiang, J. B. Pendry, and S. Zhang, “Macroscopic invisibility cloaking of visible light,” Nature Commun. 2, 176 (2011)
[CrossRef]

J. Zhang, L. Liu, Y. Luo, S. Zhang, and N. A. Mortensen, “Homogeneous optical cloak constructed with unifrom layered structures,” Opt. Express 19, 8625–8631, (2011).
[CrossRef] [PubMed]

Y. Luo, J. Zhang, H. Chen, L. Ran, B. Wu, and J. A. Kong, “A rigorous analysis of plane-tansformed invisiblity cloaks,” IEEE Tran. Antenna. Propag. 57, 3926–3933, (2009).
[CrossRef]

Y. Luo, H. Chen, J. Zhang, L. Ran, and J. A. Kong, “Design and analytical full-wave validation of the invisibility cloaks, concentrators, and field rotators created with a general class of transformations”, Phys. Rev. B 77, 125127 (2008)
[CrossRef]

Mock, J. J.

R. Liu, C. Ji, J. J. Mock, J. Y. Chin, T. J. Cui, and D. R. Smith, “Broadband Ground-Plane Cloak”, Science 323, 366–369 (2009)
[CrossRef] [PubMed]

D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “Metamaterial Electromagnetic Cloak at Microwave Frequencies,” Science 314, 977–980 (2006)
[CrossRef] [PubMed]

Mortensen, N. A.

Nemat-Nasser, S. C.

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, “Composite Medium with Simultaneously Negative Permeability and Permittivity,” Phys. Rev. Lett. 84, 4184–4187 (2000)
[CrossRef] [PubMed]

Ng, J.

Y. Lai, J. Ng, H.Y. Chen, D. Han, J. Xiao, Z. Zhang, and C. T. Chan, “Illusion Optics: The Optical Transformation of an Object into Another Object”, Phys. Rev. Lett. 102, 253902 (2009)
[CrossRef] [PubMed]

Padilla, W. J.

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, “Composite Medium with Simultaneously Negative Permeability and Permittivity,” Phys. Rev. Lett. 84, 4184–4187 (2000)
[CrossRef] [PubMed]

Pendry, J. B.

X. Chen, Y. Luo, J. Zhang, K. Jiang, J. B. Pendry, and S. Zhang, “Macroscopic invisibility cloaking of visible light,” Nature Commun. 2, 176 (2011)
[CrossRef]

J. Li and J. B. Pendry, “Hiding under the carpet: a new strategy for cloaking,” Phys. Rev. Lett. 101, 203901 (2008).
[CrossRef] [PubMed]

D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “Metamaterial Electromagnetic Cloak at Microwave Frequencies,” Science 314, 977–980 (2006)
[CrossRef] [PubMed]

J. B. Pendry, D. Schurig, and D. R. Smith, “Controlling Electromagnetic Fields,” Science 312, 1780–1782 (2006)
[CrossRef] [PubMed]

Ran, L.

Y. Luo, J. Zhang, H. Chen, L. Ran, B. Wu, and J. A. Kong, “A rigorous analysis of plane-tansformed invisiblity cloaks,” IEEE Tran. Antenna. Propag. 57, 3926–3933, (2009).
[CrossRef]

Y. Luo, H. Chen, J. Zhang, L. Ran, and J. A. Kong, “Design and analytical full-wave validation of the invisibility cloaks, concentrators, and field rotators created with a general class of transformations”, Phys. Rev. B 77, 125127 (2008)
[CrossRef]

Schultz, S.

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, “Composite Medium with Simultaneously Negative Permeability and Permittivity,” Phys. Rev. Lett. 84, 4184–4187 (2000)
[CrossRef] [PubMed]

Schurig, D.

D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “Metamaterial Electromagnetic Cloak at Microwave Frequencies,” Science 314, 977–980 (2006)
[CrossRef] [PubMed]

J. B. Pendry, D. Schurig, and D. R. Smith, “Controlling Electromagnetic Fields,” Science 312, 1780–1782 (2006)
[CrossRef] [PubMed]

Shalaev, V. M.

W. Cai, U. Chettiar, A. V. Kildishev, and V. M. Shalaev, “Optical cloaking with metamaterials,” Nature Photonics 1, 224–227(2007)
[CrossRef]

Smith, D. R.

R. Liu, C. Ji, J. J. Mock, J. Y. Chin, T. J. Cui, and D. R. Smith, “Broadband Ground-Plane Cloak”, Science 323, 366–369 (2009)
[CrossRef] [PubMed]

J. B. Pendry, D. Schurig, and D. R. Smith, “Controlling Electromagnetic Fields,” Science 312, 1780–1782 (2006)
[CrossRef] [PubMed]

D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “Metamaterial Electromagnetic Cloak at Microwave Frequencies,” Science 314, 977–980 (2006)
[CrossRef] [PubMed]

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, “Composite Medium with Simultaneously Negative Permeability and Permittivity,” Phys. Rev. Lett. 84, 4184–4187 (2000)
[CrossRef] [PubMed]

Starr, A. F.

D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “Metamaterial Electromagnetic Cloak at Microwave Frequencies,” Science 314, 977–980 (2006)
[CrossRef] [PubMed]

Sun, Z.

Vier, D. C.

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, “Composite Medium with Simultaneously Negative Permeability and Permittivity,” Phys. Rev. Lett. 84, 4184–4187 (2000)
[CrossRef] [PubMed]

Wang, W.

Wu, B.

Y. Luo, J. Zhang, H. Chen, L. Ran, B. Wu, and J. A. Kong, “A rigorous analysis of plane-tansformed invisiblity cloaks,” IEEE Tran. Antenna. Propag. 57, 3926–3933, (2009).
[CrossRef]

Xiao, J.

Y. Lai, J. Ng, H.Y. Chen, D. Han, J. Xiao, Z. Zhang, and C. T. Chan, “Illusion Optics: The Optical Transformation of an Object into Another Object”, Phys. Rev. Lett. 102, 253902 (2009)
[CrossRef] [PubMed]

Zhang, B.

B. Zhang, Y. Luo, X. Liu, and G. Barbastathis, “Macroscopic invisibility cloak for visible light,” Phys. Rev. Lett. 106, 033901 (2011)
[CrossRef] [PubMed]

Zhang, F.

D. P. Gaillot, C. Croënne, F. Zhang, and D. Lippens, “Transformation optics for the full dielectric electromagnetic cloak and metal–dielectric planar hyperlens,” New J. Phys. 10, 115039, (2008).
[CrossRef]

Zhang, J.

J. Zhang, L. Liu, Y. Luo, S. Zhang, and N. A. Mortensen, “Homogeneous optical cloak constructed with unifrom layered structures,” Opt. Express 19, 8625–8631, (2011).
[CrossRef] [PubMed]

X. Chen, Y. Luo, J. Zhang, K. Jiang, J. B. Pendry, and S. Zhang, “Macroscopic invisibility cloaking of visible light,” Nature Commun. 2, 176 (2011)
[CrossRef]

Y. Luo, J. Zhang, H. Chen, L. Ran, B. Wu, and J. A. Kong, “A rigorous analysis of plane-tansformed invisiblity cloaks,” IEEE Tran. Antenna. Propag. 57, 3926–3933, (2009).
[CrossRef]

Y. Luo, H. Chen, J. Zhang, L. Ran, and J. A. Kong, “Design and analytical full-wave validation of the invisibility cloaks, concentrators, and field rotators created with a general class of transformations”, Phys. Rev. B 77, 125127 (2008)
[CrossRef]

Zhang, Q.

Zhang, S.

J. Zhang, L. Liu, Y. Luo, S. Zhang, and N. A. Mortensen, “Homogeneous optical cloak constructed with unifrom layered structures,” Opt. Express 19, 8625–8631, (2011).
[CrossRef] [PubMed]

X. Chen, Y. Luo, J. Zhang, K. Jiang, J. B. Pendry, and S. Zhang, “Macroscopic invisibility cloaking of visible light,” Nature Commun. 2, 176 (2011)
[CrossRef]

Zhang, Z.

Y. Lai, J. Ng, H.Y. Chen, D. Han, J. Xiao, Z. Zhang, and C. T. Chan, “Illusion Optics: The Optical Transformation of an Object into Another Object”, Phys. Rev. Lett. 102, 253902 (2009)
[CrossRef] [PubMed]

IEEE Tran. Antenna. Propag. (1)

Y. Luo, J. Zhang, H. Chen, L. Ran, B. Wu, and J. A. Kong, “A rigorous analysis of plane-tansformed invisiblity cloaks,” IEEE Tran. Antenna. Propag. 57, 3926–3933, (2009).
[CrossRef]

Nature Commun. (1)

X. Chen, Y. Luo, J. Zhang, K. Jiang, J. B. Pendry, and S. Zhang, “Macroscopic invisibility cloaking of visible light,” Nature Commun. 2, 176 (2011)
[CrossRef]

Nature Photonics (1)

W. Cai, U. Chettiar, A. V. Kildishev, and V. M. Shalaev, “Optical cloaking with metamaterials,” Nature Photonics 1, 224–227(2007)
[CrossRef]

New J. Phys. (1)

D. P. Gaillot, C. Croënne, F. Zhang, and D. Lippens, “Transformation optics for the full dielectric electromagnetic cloak and metal–dielectric planar hyperlens,” New J. Phys. 10, 115039, (2008).
[CrossRef]

Opt. Express (2)

Phys. Rev. B (1)

Y. Luo, H. Chen, J. Zhang, L. Ran, and J. A. Kong, “Design and analytical full-wave validation of the invisibility cloaks, concentrators, and field rotators created with a general class of transformations”, Phys. Rev. B 77, 125127 (2008)
[CrossRef]

Phys. Rev. Lett. (4)

Y. Lai, J. Ng, H.Y. Chen, D. Han, J. Xiao, Z. Zhang, and C. T. Chan, “Illusion Optics: The Optical Transformation of an Object into Another Object”, Phys. Rev. Lett. 102, 253902 (2009)
[CrossRef] [PubMed]

D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser, and S. Schultz, “Composite Medium with Simultaneously Negative Permeability and Permittivity,” Phys. Rev. Lett. 84, 4184–4187 (2000)
[CrossRef] [PubMed]

B. Zhang, Y. Luo, X. Liu, and G. Barbastathis, “Macroscopic invisibility cloak for visible light,” Phys. Rev. Lett. 106, 033901 (2011)
[CrossRef] [PubMed]

J. Li and J. B. Pendry, “Hiding under the carpet: a new strategy for cloaking,” Phys. Rev. Lett. 101, 203901 (2008).
[CrossRef] [PubMed]

Science (4)

D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “Metamaterial Electromagnetic Cloak at Microwave Frequencies,” Science 314, 977–980 (2006)
[CrossRef] [PubMed]

J. B. Pendry, D. Schurig, and D. R. Smith, “Controlling Electromagnetic Fields,” Science 312, 1780–1782 (2006)
[CrossRef] [PubMed]

U. Leonhardt, “Optical Conformal Mapping,” Science 312, 1777–1780 (2006)
[CrossRef] [PubMed]

R. Liu, C. Ji, J. J. Mock, J. Y. Chin, T. J. Cui, and D. R. Smith, “Broadband Ground-Plane Cloak”, Science 323, 366–369 (2009)
[CrossRef] [PubMed]

Supplementary Material (4)

» Media 1: MOV (266 KB)     
» Media 2: MOV (242 KB)     
» Media 3: MOV (318 KB)     
» Media 4: MOV (266 KB)     

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Figures (4)

Fig. 1
Fig. 1

(a) The schematic of the proposed triangular corner cloak, (b) the cross section of the cloak and its geometrical parameters.

Fig. 2
Fig. 2

Ez distributions in the PEC corner. (a) ( Media 1) Empty, (b) ( Media 2) covered with the ideal cloak, (c) ( Media 3) covered with the simplified cloak, and (d) ( Media 4) at oblique incidence to the simplified cloak. The obstacles here are modeled by PEC boundaries.

Fig. 3
Fig. 3

The distribution of Ez along the line y = 20λ with and without the cloak, for different incident angles θ. (a) θ = 0° for the ideal cloak, (b) θ = 0° for the simplified cloak, (c) θ = 40° for the ideal cloak, (d) θ = 40° for the simplified cloak.

Fig. 4
Fig. 4

(a) The scattering coefficient at different angles of incidence, comparing the ideal cloak and simplified cloaks. (b) The calculated scattering coefficient versus loss.

Equations (6)

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x = x , z = z , y = { ( a + x a c + y ) d c + d , ( Region I ) ( b x b c + y ) d c + d , ( Region II )
ɛ = μ = { [ d + c d c a 0 c a d ( a 2 + c 2 ) a 2 ( c + d ) 0 0 0 d + c d ] ( Region I ) [ d + c d c b 0 c b d ( b 2 + c 2 ) b 2 ( c + d ) 0 0 0 d + c d ] ( Region II )
ɛ = μ = [ 2 sgn ( x ) 0 sgn ( x ) 1 0 0 0 2 ] ,
ɛ = 2 μ = [ 2 sgn ( x ) sgn ( x ) 1 ] .
ɛ = 1 μ = [ 4 2 sgn ( x ) 2 sgn ( x ) 2 ] .
S d = | E e E c | 2 d x | E i | 2 d x

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