[1] J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006).
[2] U. Leonhardt, Science 312, 1777 (2006).
[3] J. Berenger, J. Comput. Phys. 114, 185 (1994).
[4] U. Leonhardt and T. G. Philbin, N. J. Phys. 8, 247 (2006).
[5] D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, Science 314, 977 (2006).
[6] M. Kadic, T. Bückmann, R. Schittny, and M. Wegener, Rep. Prog. Phys. 76, 126501 (2013).
[7] M. Z. Ali, Chin. Opt. Lett. 10, 071604 (2012).
[8] Y. Chen, Y. Fang, S. Huang, X. Yan, and J. Shi, Chin. Opt. Lett. 11, 061602 (2013).
[9] R. Tsu and M. A. Fiddy, Photon. Res. 1, 77 (2013).
[10] J. Zhao, H. Zhang, X. Zhang, D. Li, H. Lu, and M. Xu, Photon. Res. 1, 160 (2013).
[11] H. Chen and C. T. Chan, Appl. Phys. Lett. 90, 241105 (2007).
[12] M. Rahm, D. Schurig, D. A. Roberts, S. A. Cummer, D. R. Smith, and J. B. Pendry, Photon. Nanostruct. Fundament. Appl. 6, 87 (2008).
[13] T. Yang, H. Y. Chen, X. D. Luo, and H. R. Ma, Opt. Express 16, 18545 (2008).
[14] J. Ng, H. Y. Chen, and C. T. Chan, Opt. Lett. 34, 644 (2009).
[15] J. Li and J. B. Pendry, Phys. Rev. Lett. 101, 203901 (2008).
[16] R. Liu, C. Ji, J. J. Mock, J. Y. Chin, T. J. Cui, and D. R. Smith, Science 323, 366 (2009).
[17] J. Valentine, J. Li, T. Zentgraf, G. Bartal, and X. Zhang, Nat. Mater. 8, 568 (2009).
[18] J. Renger, M. Kadic, G. Dupont, S. S. Acimovic, S. Guenneau, R. Quidant, and S. Enoch, Opt. Express 18, 15757 (2010).
[19] H. Chen, X. Luo, H. Ma, and C. T. Chan, Opt. Express 16, 14603 (2008).
[20] G. Castaldi, I. Gallina, V. Galdi, A. Alù, and N. Engheta, Opt. Express 17, 3101 (2009).
[21] G. Castaldi, I. Gallina, V. Galdi, A. Alù, and N. Engheta, Wave Motion 48, 455 (2011).
[22] I. Gallina, G. Castaldi, V. Galdi, A. Alù, and N. Engheta, Phys. Rev. B 81, 125124 (2010).
[23] A. Greenleaf, Y. Kurylev, M. Lassas, and G. Uhlmann, Phys. Rev. E 83, 016603 (2011).
[24] L. Li, F. Huo, Y. Zhang, Y. Chen, and C. Liang, Opt. Express 21, 9422 (2013).
[25] J. Zhao, D. Wang, R. Peng, Q. Hu, and M. Wang, Phys. Rev. E 84, 046607 (2011).
[26] G. W. Milton, M. Briane, and J. R. Willis, N. J. Phys. 8, 248 (2006).
[27] M. Kadic, S. Guenneau, S. Enoch, and S. A. Ramakrishna, ACS Nano 5, 6819 (2011).
[28] J. Hu, X. Zhou, and G. Hu, Opt. Express 17, 1308 (2009).
[29] X. Liu, X. Li, J. Zhou, Z. Wang, J. Shi, and D. Liu, Opt. Express 21, 30746 (2013).