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Unusual photon tunneling in the frustrated total internal reflection structure including indefinite metamaterials

The transmittance and the behavior of an evanescent field in the frustrated total internal reflection structure composed of isotropic media and anisotropic indefinite metamaterial are obtained by the transfer matrix formulation. The evanescent waves can evolve into different forms associated with the different dispersion relations of the indefinite metamaterial. In cutoff and anti-cutoff media, the evanescent waves are amplified and even total photon tunneling is obtained under some conditions. Then the evanescent wave can be transformed into a propagation wave and highly efficient tunneling is also achieved in a always-cutoff medium.