Veselago V G. The electrodynamics of substances with simultaneously negative values of ε and μ\[J\]. Sov Phys Usp,1968,10(4): 509-514.
[3]
Pendry J B, Holden A J, Stewart W J, at el. Extremely low frequency plasmons in metallic mesostructures\[J\]. Phys Rev Lett,1996,76:4773-4776.
[4]
Shelby R A, Smith D R, Nemat-Nasser S C, at el. Microwave transmission through a two-dimensional, isotropic, left-handed metamaterial\[J\]. Appl Phys Lett,2001,78(4):489-491.
[5]
Smith D R, Padilla W J, Vier D C, et al. Composite medium wit hsimultaneously negative permeability and permittivity\[J\]. Phys Rev Lett,2000,84(18):4184-4187.
