Open AccessFocusing properties of the uniaxially anisotropic metamaterial slab lens
Author(s) -
Liu Hong-Yao,
Qiang Liu,
Hailu Luo,
Shuangchun Wen
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.59.256
Subject(s) - metamaterial , slab , anisotropy , physics , optics , polarization (electrochemistry) , lens (geology) , transverse plane , superlens , optical axis , beam (structure) , geophysics , chemistry , structural engineering , engineering
We studied the focusing properties of an anisotropic metamaterial slab lens by means of the angular spectrum representation of the vectorial electromagnetic field. The analytical expressions for vectorial fields in all the propagation regions are obtainedand the quantitative relationship between the focusing characteristics of the vectorial electromagnetic field and the anisotropic parameters of the anisotropic metamaterial slab lens is disclosed. The polarization state of the focusing beam is found to be changed due to the effect of anisotropy. As an application of the vectorial theorywe have analyzed the focusing property of an anisotropic metamaterial slab for which the permeability along longitudinal axis is -1. It is demonstrated that this slab lens can redirect a beam initially polarized along a transverse axis to a partial focus and give a clear polarization rotation of the beam.