1. Veselago, V. G., "The electrodynamics of substances with simultaneously negative values of ε and μ," Sov. Phys. Uspekhi, Vol. 10, 509-514, 1968, Doi: 10.1070/PU1968v010n04ABEH003699.
doi:10.1070/PU1968v010n04ABEH003699
2. Pendry, J. B., A. J. Holden, D. J. Robbins, and W. J. Stewart, "Low frequency plasmons in thin-wire structures," J. Phys. — Condens. Mat., Vol. 10, 4785-4809, 1998, Doi: 10.1088/0953-8984/10/22/007.
doi:10.1088/0953-8984/10/22/007
3. Pendry, J. B., A. J. Holden, D. J. Robbins, and W. J. Stewart, "Magnetism from conductors and enhanced nonlinear phenomena," IEEE T. Microw. Theory, Vol. 47, 2075-2084, 1998, Doi: 10.1088/0953-8984/10/22/007.
doi:10.1109/22.798002
4. Falcone, F., T. Lopetegi, M. A. G. Laso, J. D. Baena, J. Bonache, M. Beruete, R. Marques, F. Martin, and M. Sorolla, "Babinet principle applied to the design of metasurfaces and metamaterials," Phys. Rev. Lett., Vol. 93, No. 19, 197401-1-197401-4, 2004, Doi: 10.1103/PhysRevLett.93.197401.
doi:10.1103/PhysRevLett.93.197401
5. Dolling, G., C. Enkrich, M. Wegener, J. F. Zhou, C. M. Soukoulis, and S. Linden, "Cut-wire pairs and plate pairs as magnetic atoms for optical metamaterials," Opt. Lett., Vol. 30, 3198-3200, 2005, Doi: 10.1364/OL.30.003198.
doi:10.1364/OL.30.003198
6. Zhang, S., W. Fan, N. C. Panoiu, K. J. Malloy, R. M. Osgood, and S. R. J. Brueck, "Experimental demonstration of near-infrared negative-index metamaterials," Phys. Rev. Lett., Vol. 95, No. 13, 137404-1-137404-4, 2005, Doi: 10.1103/PhysRevLett.95.137404.
doi:10.1103/PhysRevLett.95.137404
7. Kafesaki, M., I. Tsiapa, N. Katsarakis, T. Koschny, C. M. Soukoulis, and E. N. Economou, "Left-handed metamaterials: The fishnet structure and its variations," Phys. Rev. B, Vol. 75, 235114-1-235114-9, 2007, Doi: 0.1103/PhysRevB.75.235114.
8. Valentine, J., S. Zhang, T. Zentgraf, E. Ulin-Avila, D. A. Genov, G. Bartal, and X. Zhang, "Three-dimensional optical metamaterial with a negative refractive index," Nature, Vol. 455, 376-379, 2008, Doi: 10.1038/nature07247.
doi:10.1038/nature07247
9. Shelby, R. A., D. R. Smith, and S. Schultz, "Experimental verification of a negative index of refraction," Science, Vol. 292, 77-79, 2001, Doi: 10.1126/science.1058847.
doi:10.1126/science.1058847
10. Xiao, S., U. K. Chettiar, A. V. Kildishev, V. P. Drachev, and V. M. Shalaev, "Yellow-light negative-index metamaterials," Opt. Lett., Vol. 34, 3478-3480, 2009, Doi: 10.1364/OL.34.003478.
doi:10.1364/OL.34.003478
11. Cai, W. and V. M. Shalaev, "Optical Metamaterials: Fundamentals and Applications," Springer, Dordrecht, 2009, doi:10.1007/978-1-4419-1151-3.
12. Ramakrishna, S. A. and T. M. Grzegorczyk, Physics and Applications of Negative Refractive Index Materials, SPIE Press, Bellingham, WA & CRC Press, Taylor & Francis Group, Boca Raton FL, 2009, Doi: 10.1080/00107510903257459.
13. Pendry, J. B., "Negative refraction makes a perfect lens," Phys. Rev. Lett., Vol. 85, 3966-3969, 2000. Doi: 10.1103/PhysRevLett.85.3966.
doi:10.1103/PhysRevLett.85.3966
14. Fang, N., H. Lee, C. Sun, and X. Zhang, "Sub-diffraction-limited optical imaging with a silver superlens," Science, Vol. 308, 534-537, 2005, Doi: 10.1126/science.1108759.
doi:10.1126/science.1108759
15. Engheta, N., "An idea for thin subwavelength cavity resonators using metamaterials with negative permittivity and permeability," IEEE Anten. Wirel. Propag. Lett., Vol. 1, 10-13, 2002, Doi: 10.1109/LAWP.2002.802576.
doi:10.1109/LAWP.2002.802576
16. Pendry, J. B., D. Shurig, and D. R. Smith, "Controlling electromagnetic fields," Science, Vol. 312, 1780-1782, 2006, Doi: 10.1126/science.1126493.
doi:10.1126/science.1125907
17. Jacob, Z., L. V. Alekseyev, and E. Nerimanov, "Optical hyperlens: Far-field imaging beyond the diffraction limit," Opt. Express, Vol. 14, 8247-8256, 2006, Doi: 10.1364/OE.14.008247.
doi:10.1364/OE.14.008247
18. Cai, W., U. K. Chettiar, A. V. Kildishev, and V. M. Shalaev, "Optical cloaking with metamaterials," Nat. Photonics, Vol. 1, 224-227, 2007, Doi: 10.1038/nphoton.2007.28.
doi:10.1038/nphoton.2007.28
19. Fung, T. H., L. L. Leung, J. J. Xiao, and K. W. Yu, "Controlling electric fields spatially by graded metamaterials: Implication on enhanced nonlinear optical responses," Opt. Commun., Vol. 282, 1028-1031, 2009, Doi: 10.1016/j.optcom.2008.11.028.
doi:10.1016/j.optcom.2008.11.028
20. Ramakrishna, S. A. and J. B. Pendry, "Spherical perfect lens: Solutions of Maxwell’s equations for spherical geometry," Phys. Rev. B, Vol. 69, 115115-1-115115-7, 2004, Doi: 10.1103/PhysRevB.69.115115.
21. Smith, D. R., J. J. Mock, A. F. Starr, and D. Schurig, "Gradient index metamaterials," Phys. Rev. E, Vol. 71, 036609-1-036609-6, 2005, Doi: 10.1103/PhysRevE.71.036609.
22. Pinchuk, A. O. and G. C. Schatz, "Metamaterials with gradient negative index of refraction," J. Opt. Soc. Am. A, Vol. 24, A39-A44, 2007, Doi: 10.1364/JOSAA.24.000A39.
doi:10.1364/JOSAA.24.000A39
23. Litchinitser, N. M., A. I. Maimistov, I. R. Gabitov, R. Z. Sagdeev, and V. M. Shalaev, "Metamaterials: Electromagnetic enhancement at zero-index transition," Opt. Lett., Vol. 33, 2350-2352, 2008, Doi: 10.1364/OL.33.002350.
doi:10.1364/OL.33.002350
24. Dalarsson, M. and P. Tassin, "Analytical solution for wave propagation through a graded index interface between a right-handed and a left-handed material," Opt. Express, Vol. 17, No. 8, 6747-6752, 2009, Doi: 10.1364/OE.17.006747.
doi:10.1364/OE.17.006747
25. Dalarsson, M., M. Norgren, and Z. Jaksic, "Lossy gradient index metamaterial with sinusoidal periodicity of refractive index: Case of constant impedance throughout the structure," J. Nanophotonics, Vol. 5, No. 1, 051804-1-051804-8, 2011, Doi: 10.1117/1.3590251.
doi:10.1117/1.3590251
26. Dalarsson, M., M. Norgren, N. Doncov, and Z. Jaksic, "Lossy gradient index transmission optics with arbitrary periodic permittivity and permeability and constant impedance throughout the structure," J. Opt., Vol. 14, No. 6, 065102-1-065102-7, 2012, Doi: 10.1088/2040-8978/14/6/065102.
doi:10.1088/2040-8978/14/6/065102
27. Dalarsson, M., M. Norgren, T. Asenov, N. Doncov, and Z. Jaksic, "Exact analytical solution for fields in gradient index metamaterials with different loss factors in negative and positive refractive index segments," J. Nanophotonics, Vol. 7, No. 1, 073086-1-073086-1, 2013, Doi: 10.1117/1.JNP.7.073086.
doi:10.1117/1.JNP.7.073086
28. Dalarsson, M., M. Norgren, T. Asenov, and N. Doncov, "Arbitrary loss factors in the wave propagation between RHM and LHM media with constant impedance throughout the structure," Progress In Electromagnetics Research, Vol. 137, 527-538, 2013.
doi:10.2528/PIER13013004
29. Mei, , Z. L., J. Bai, and T. J. Cui, "Gradient index metamaterials realized by drilling hole arrays," J. Phys. D, Vol. 43, 055404-1-055404-4, 2010, Doi: 10.1088/0022-3727/43/5/055404.
30. Kildishev, A. V. and V. M. Shalaev, "Engineering space for light via transformation optics," Opt. Lett., Vol. 33, 43-45, 2008, Doi: 10.1364/OL.33.000043.
doi:10.1364/OL.33.000043
31. Li, J. and J. B. Pendry, "Hiding under the Carpet: A new strategy for cloaking," Phys. Rev. Lett., Vol. 101, No. 20, 203901-1-203901-4, 2008, Doi: 10.1103/PhysRevLett.101.203901.
doi:10.1103/PhysRevLett.101.203901
32. Valentine, J., J. Li, T. Zentgraf, G. Bartal, and X. Zhang, "An optical cloak made of dielectrics," Nat. Mater., Vol. 8, 568-571, 2009, Doi: 10.1038/nmat2461.
doi:10.1038/nmat2461
33. Liu, R., X.M. Yang, J. G. Gollub, J. J.Mock, T. J. Cui, and D. R. Smith, "Gradient index circuit by waveguided metamaterials," Appl. Phys. Lett., Vol. 94, 073506-1-073506-3, 2009, Doi: 10.1063/1.3081399.
34. Savini, G., P. A. R. Ade, and J. Zhang, "A new artificial material approach for flat THz frequency lenses," Opt. Express, Vol. 20, 25766-25773, 2012, Doi: 10.1364/OE.20.025766.
doi:10.1364/OE.20.025766
35. Jain, S., M. Abdel-Mageed, and R. Mittra, "Flat-lens design using field transformation and its comparison with those based on transformation optics and ray optics," IEEE Anten. Wirel. Propag. Lett., Vol. 12, 777-780, 2013, Doi: 10.1109/LAWP.2013.2270946.
doi:10.1109/LAWP.2013.2270946