Open AccessFrequency properties of the defect mode inside a photonic crystal band-gap with zero average refractive index
Author(s) -
Lixiang Liu,
Lijuan Dong,
Yanhong Liu,
Chunhua Yang,
Chengquan Yang,
Yanling Shi
Publication year - 2011
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.60.084218
Subject(s) - photonic crystal , optics , metamaterial , refractive index , materials science , miniaturization , band gap , normalized frequency (unit) , lattice (music) , optoelectronics , physics , acoustics , phase locked loop , frequency synthesizer , phase noise , nanotechnology
Left-handed metamaterial has been designed based on transmission line technology. A left-handed and a normal materials are studied alternately to form a one-dimensional photonic crystal with an average refractive index of zero but a special band-gap emerges. The two band-edge frequencies of this gap are insensitive to the incident angle and lattice constant. These characteristics can be used in the miniaturization of filters and high-quality coupling. Studies show that we can regulate the mode frequency by controlling the thickness of the defect layer, which can provide a method for the adjusting frequency in applications. The experimental results are consistent with numerical simulation.