Open AccessThe experimental investigation of the discrete mode in the zero-average-refractive-index gap
Author(s) -
Hui Zhang,
Youquan Li,
Yunqi Fu,
Naichang Yuan
Publication year - 2010
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.59.336
Subject(s) - zero (linguistics) , refractive index , mode (computer interface) , optics , physics , zero mode , band gap , zero point energy , materials science , condensed matter physics , quantum mechanics , computer science , philosophy , linguistics , operating system
We experimentally investigate the discrete mode in the zero-average-refractive-index gap (the zero-n—gap) of the one-dimensional periodical structures containing left-handed materials (LHMs) and right-handed materials (RHMs). When the discrete mode conditions are satisfied in the zero-n gap, there are no discrete propagating modes, but the zero-n—gap completely vanishes. This behavior is attributed to the dispersive property of LHMs and RHMs. In addition, the theoretical expectation of the discrete modes with no sidelobes in the zero-n—gap never occurs in experiment because the LHMs is intrinsically dispersive.