[1] W. L. Barnes, A. Dereux, and T. W. Ebbesen, Nature 424, 824 (2003).
[2] E. Ozbay, Science 311, 189 (2006).
[3] J. B. Pendry, L. Martin-Moreno, and F. J. Garcia-Vidal, Science 305, 847 (2004).
[4] A. P. Hibbins, B. R. Evans, and J. R. Sambles, Science 308, 670 (2005).
[5] S. Maier and S. Andrews, Appl. Phys. Lett. 88, 251120 (2006).
[6] M. B. Johnston, Nat. Photon. 1, 14 (2007).
[7] B. Guo, G. Song, and L. Chen, Appl. Phys. Lett. 91, 021103 (2007).
[8] B. Guo, G. Song, and L. Chen, IEEE Trans. Nanotechnol. 8, 408 (2009).
[9] S. A. Maier, S. R. Andrews, L. Martin-Moreno, and F. J. Garcia-Vidal, Phys. Rev. Lett. 97, 176805 (2006).
[10] Q. Gan, Z. Fu, Y. J. Ding, and F. J. Bartoli, Phys. Rev. Lett. 100, 256803 (2008).
[11] H.-T. Chen, R. Kersting, and G. C. Cho, Appl. Phys. Lett. 83, 1 (2003).
[12] M. Nagel, P. Haring Bolivar, M. Brucherseifer, H. Kurz, A. Bosserhoff, and R. Buttner, Appl. Phys. Lett. 80, 154 (2002).
[13] F. J. Garcia-Vidal, L. Martin-Moreno, and J. B. Pendry, J. Opt. A: Pure Appl. Opt. 7, S94 (2005).
[14] K. Zhang and D. Li, Electromagnetic Theory for Microwaves and Optoelectronics (Springer-Verlag, Berlin, Heidelberg, 1998).
[15] Z. Ruan and M. Qiu, Appl. Phys. Lett. 90, 201906 (2007).
[16] B. Guo, G. Song, and L. Chen, Opt. Commun. 281, 1123 (2008).