Negative and near zero refraction metamaterials based on permanent magnetic ferrites.

Negative and near zero refraction metamaterials based on permanent magnetic ferrites.
复制标题

基于永磁体铁氧体的负折射和近零折射超材料

DOI:
10.1038/srep04139
复制
发表时间:
2014-02-20
期刊:
影响因子:
4.6
通讯作者:
Lan C
Lan C
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Bi K;Guo Y;Zhou J;Dong G;Zhao H;Zhao Q;Xiao Z;Liu X;Lan C

文献摘要

参考文献

被引文献

相似文献

基于铁氧体中铁磁共振负磁导率的铁氧体超材料引起了人们的极大兴趣。然而,这种超材料面临着一个限制,即铁磁共振只能在外加磁场的情况下发生。在这里,我们展示了一种基于永磁铁氧体的超材料,它不仅表现出负折射,而且在没有外加磁场的情况下表现出接近零的折射。制备了楔形和板状结构的永磁铁氧体超材料,并在近场扫描系统中测量了材料的折射率。测量的空间电场图证实了负折射率和接近零的折射率行为。这项工作为铁氧体基超材料的发展提供了新的机遇。
Ferrite metamaterials based on the negative permeability of ferromagnetic resonance in ferrites are of great interest. However, such metamaterials face a limitation that the ferromagnetic resonance can only take place while an external magnetic field applied. Here, we demonstrate a metamaterial based on permanent magnetic ferrite which exhibits not only negative refraction but also near zero refraction without applied magnetic field. The wedge-shaped and slab-shaped structures of permanent magnetic ferrite-based metamaterials were prepared and the refraction properties were measured in a near-field scanning system. The negative and near zero refractive behaviors are confirmed by the measured spatial electric field maps. This work offers new opportunities for the development of ferrite-based metamaterials.
DOI: 10.1063/1.1846032
发表时间: 2005-05-15
影响因子: 3.2
作者:
Dewar, G
通讯作者: Dewar, G
DOI: 10.1103/physrevb.70.201101
发表时间: 2004-11-01
期刊: PHYSICAL REVIEW B
影响因子: 3.7
作者:
Katsarakis, N;Koschny, T;Soukoulis, CM
通讯作者: Soukoulis, CM
DOI: 10.1103/physreve.81.036605
发表时间: 2010-03-01
期刊: PHYSICAL REVIEW E
影响因子: 2.4
作者:
Smith, D. R.
通讯作者: Smith, D. R.
DOI: 10.1038/srep00829
发表时间: 2012
期刊: SCIENTIFIC REPORTS
影响因子: 4.6
作者:
Bouillard, J. -S;Vilain, S.;Dickson, W.;Wurtz, G. A.;Zayats, A. V.
通讯作者: Zayats, A. V.
DOI: 10.1103/physrevlett.85.3966
发表时间: 2000-10-30
影响因子: 8.6
作者:
Pendry, JB
通讯作者: Pendry, JB