Open AccessDirectional defect modes in twelve-fold-symmetry quasicrystal
Author(s) -
Feng Zhi-Fang,
Rongjuan Liu,
Zhiyuan Li
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.1948
Subject(s) - quasiperiodic function , quasicrystal , photonic crystal , translational symmetry , optics , photonics , physics , crystal (programming language) , symmetry (geometry) , materials science , condensed matter physics , molecular physics , geometry , mathematics , computer science , programming language
The translational symmetric associated with photonic crystal is absent in the rotationally symmetric quasiperiodic photonic crystal QPCs, and the quasiperiodic photonic crystal has more defect modes than photonic crystal because of it. In this paper, we investigate the defect modes in the 12-fold quasiperiodic photonic crystal by the multiple scattering method. We find that there is a directional defect mode in quasiperiodic photonic crystal. When the defect rotates against the centre of the symmetry, there emerges a new defect mode.