[1] J. B. Pendry, A. J. Holden, W. J. Stewart et al.. Extremely low frequency plasmons in metallic mesostructures [J]. Phys. Rev. Lett., 1996, 76(25): 4773～4776
[2] J. B. Pendry, A. J. Holden, D. J. Robbins et al.. Low frequency plasmons in thin-wire structures [J]. J. Phys. Condens. Matter., 1998, 10(22): 4785～4809
[3] D. R. Smith, W. J. Padilla, D. C. Vier et al.. Composite medium with simultaneously negative permeability and permittivity [J]. Phys. Rev. Lett., 2000, 84(18): 4184～4187
[4] J. B. Pendry, A. J. Holden, D. J. Robbins et al.. Magnetism from conductors and enhanced nonlinear phenomena [J]. IEEE Trans. Microwave Theory & Tech., 1999, 47(11): 2075～2084
[5] A. Berrier, M. Mulot, M. Swillo et al.. Negative refraction at infrared wavelengths in a two-dimensional photonic crystal [J]. Phys. Rev. Lett., 2004, 93(7): 073902
[6] Q. Thommen, P. Mandel. Left-handed propertion of erbium-dopted crystals [J]. Opt. Lett., 2006, 31(12): 1803～1805
[7] G. V. Eleftheriades, A. K. Iyer, P. C. Kremer. Planar negative refractive index media using periodically L-C loaded transmission lines [J]. IEEE Trans. Microwave Theory & Tech., 2002, 50(12): 2702～2712
[8] J. Kstel, M. Fleischhauer, S. F. Yelin et al.. Tunable regative refraction without absorption via electromagnatically induced chirality [J]. Phys. Rev. Lett., 2007, 99(7): 073602
[9] J. Han, A. Lakhtakia, C. Qiu. Terahertz metamaterials with semiconductor split-ring resonators for magnetostatic tunability [J]. Opt. Express, 2008, 16(19): 14390～14396
[10] X. M. Su, H. X, Kang, J. Kou et al.. Electromagnetically induced left-handedness by both coherent and incoherent fields [J]. Phys. Rev. A, 2009, 80(2): 023805
[11] Q. Thommen, P. Mandel. Electromagnetically induced left handedness in optically excited four-level atomic media [J]. Phys. Rev. Lett., 2006, 96(5): 053601
[12] A. J. Hoffman, A. Sridhar, P. C. Braun et al.. Midinfrared semiconductor optical metamaterials [J]. J. Appl. Phys., 2009, 105(12): 122411
[13] K. Vynck, D. Felbacq, E. Centeno et al.. All-dielectric rod-type metamaterials at optical frequencies [J]. Phys. Rev. Lett., 2009, 102(13): 133901
[14] Q. Zhao, L. Kang, B. Du et al.. Electrically tunable negative permeability metamaterials based on nematic liquid crystals [J]. Appl. Phys. Lett., 2007, 90(1): 011112
[15] Q. Zhao, L. Kang, B. Li et al.. Tunable negative refraction in nematic liquid crystals [J]. Appl. Phys. Lett., 2006, 89(22): 221918
[16] H. J. Zhao, J. Zhou, Q. Zhao et al.. Magnetotunable left-handed material consisting of yttrium iron garnet slab and metallic wires [J]. Appl. Phys. Lett., 2007, 91(13): 131107
[17] Y. He, P. He, S. D. Yoon et al.. Tunable negative index metamatrial using yttrium iron garnet [J]. J. Magnetism and Magnetic Materials, 2007,313(1): 187～191
[20] I. I. Smolyaninov, Y. J. Hung, C. C. Davis. Magnifying superlens in the visible frequency range [J]. Science, 2007, 315(5819): 1699～1701
[21] C. M. Soukoulis, M. Kafesaki, E. N. Economou. Negative-index materials: new frontiers in optics [J]. Adv. Mater., 2006, 18(15): 1941～1952
[22] W. Cai, U. K. Chettiar, A. V. Kildishev et al.. Optical cloaking with metamaterials [J]. Nature Photonics, 2007, 1(4): 224～227
[23] A. V. Zayats, I. I. Smolyaninov, A. A. Maradudin. Nano-optics of surface plasmon polaritons [J]. Phys. Reports., 2005, 408(324): 131～314
[24] W. L. Barnes, A. Dereux, T. W. Ebbesen. Surface plasmon subwavelength optics [J]. Nature, 2003, 424(6950): 824～830
[25] Li Jijun, Wu Yaode, Song Mingyu. Basic characters of surface plasmon polaritons [J]. J. Yangtze University (Nat. Sci. Ed.) Sci. & Engng. V Dec., 2007, 4(4): 46～49
[26] Gu Benyuan. The emerging surface plasmon optics [J]. Physics Teaching, 2008, 30(2): 2～6
[27] R. Ruppin. Surface polaritons of a left-handed medium [J]. Phys. Lett. A, 2000, 277(1): 61～64
[28] S. A. Darmanyan, M. Nevière, A. A. Zakhidov. Surface modes at the interface of conventional and left-handed media [J]. Opt. Commun., 2003, 225(4-6): 233～240
