Open AccessMultiple adjustable optical Tamm states in one-dimensional photonic quasicrystals with predesigned bandgaps
Author(s) -
Yue Fei,
Youwen Liu,
Daxing Dong,
Kai-Zhong Gao,
Shuai Ren,
Fan Yang
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.034872
Subject(s) - quasicrystal , photonic crystal , photonics , electric field , optics , band gap , photonic bandgap , materials science , metamaterial , optoelectronics , excited state , physics , field (mathematics) , condensed matter physics , quantum mechanics , mathematics , pure mathematics
We proposed an approach to get multiple and adjustable optical Tamm states (OTSs) by constructing a structure consisting of a metal layer and one-dimensional photonic quasicrystals with preassigned bandgaps. In the structure, multiple OTSs excited simultaneously in each bandgap were observed. We explored the physics mechanism of the multiple OTSs by analyzing the electric field intensity distribution in the structure. Besides, the results also show that the thickness of the top layer gives one more degree of freedom in designing multiple OTSs. Finally, we demonstrated that one additional OTS can be obtained independently by adding another bandgap to the proposed structure.