Eur. Phys. J. D (2013) 67: 27
https://doi.org/10.1140/epjd/e2012-30383-x

Regular Article

One-way absorption behaviour in defective 1D dielectric-metal photonic crystal

¹ Department of Physics, Azarbaijan Shahid Madani University, Tabriz, Iran
² Research Group of Processing and Communication, Azarbaijan Shahid Madani University, Tabriz, Iran

^a e-mail: k-jamshidi@azaruniv.edu

Received: 19 June 2012
Received in final form: 21 October 2012
Published online: 26 February 2013

Abstract

In this paper, the one-way absorption property in one-dimensional dielectric/metal photonic crystal structure with a dielectric defect layer is studied. The effects of incident angle and state of polarization on one-way absorption behaviour of the anti-resonant (AR) mode are investigated. The normally incident wave from left to right propagation is totally allowed to penetrate to the structure but right to left propagation totally reflected at the same wavelength. It is found that, with increasing of the incident angle, the AR mode shifts to the lower wavelengths and its intensity decreases. Simultaneously, another AR mode with reversed one-way property appears at higher wavelength. The one-way behaviour on absorption is observed at the both states of polarizations but is localized on different wavelengths. Those effects, are suggesting that the proposed structure can be used as a direction sense polarization splitter or reflector/antireflector device.