Eur. Phys. J. D 61, 725-729 (2011)
https://doi.org/10.1140/epjd/e2010-10433-3

Tunable phase compensator based on one-dimensional photonic crystals with single-negative materials

¹ Department of Physics, Zhenjiang Watercraft College, Zhenjiang, 212003, P.R. China
² College of Optoelectronic Engineering, Center of Optofluidic Technology, Nanjing University of Posts and Telecommunications, Nanjing, 210003, P.R. China

Corresponding author: ^a fang_yt1965@sina.com

Received: 3 August 2010
Published online: 4 February 2011

Abstract

The reflection phase difference between TE and TM waves in one-dimensional photonic crystals composed of single-negative (SNG) (permittivity- or permeability-negative) materials is investigated by transfer matrix method. Within two omni-directional gaps the reflection phase difference changes smoothly and increases with the increasing of the incident angle. In the center of the second omni-directional gap the reflection phase difference remains almost unchanged in a broad frequency band. Especially, at both the edges of the second omni-directional gap the reflection phase difference keeps zero in spite of the change of incident angle. Based on these properties, a continuously tunable phase compensators and an omni-directionally synchronous reflector for TE and TM waves can be designed. The working frequencies for the phase compensators and synchronous reflector are tunable.