Omnidirectional reflection from one-dimensional quasi-periodic photonic crystal containing left-handed material

Abstract

In this Letter, we study the properties of one-dimensional quasi-periodic photonic crystal containing left-handed material. In the light of the dispersion relation, we show that one-dimensional quasi-periodic photonic crystal can exhibit complete reflection at a given microwave frequency for all incident angles and both polarizations ( s- and p-polarizations). The influence of left-handed material's permittivity and permeability on the omnidirectional reflection is also discussed. We find that when | ɛ | is larger than | μ | , it is difficult to realize the omnidirectional reflection for p-polarization, on the contrary, it is difficult to realize the omnidirectional reflection for s-polarization when | μ | is larger than | ɛ | , which is expected to realize omnidirectional reflection in a certain frequency region. The effect of the left-handed material's absorption on omnidirectional reflection is also investigated.