"Short circuit" of power flux of light in near-zero refractive index metamaterials

An interesting phenomenon of "short circuit" of the power flux of light arising from the electromagnetic decoupling has been discovered in a composite structure composed of epsilon-mu-near-zero medium (EMNZ) and epsilon-near-zero (ENZ). In the composite structure, the power flux of light goes around the ENZ components with any shapes and sizes and perfectly passes through the composite structure via the EMNZ until the connection of the EMNZ is broken. The ENZ components can freely manipulate the power flux of light flowing along arbitrary paths inside the EMNZ without reflection. In addition, we discover that the embedded ENZ components enhance the stability of transmission property of impure EMNZ effectively. The arbitrarily-shaped non-ENZ dopants of EMNZ are able to be well hidden by coating an ENZ cladding with moderate thickness, which is demonstrated through an actual structure composed of photonic crystals. In the area of transmission and processing of optical signal in two-dimensional integrated optical systems, the EMNZ-ENZ composite structure we construct employs potential application prospects.