Rapidly increasing interest in the left-handed materials (LHM) started after Pendry et al. predicted that certain man-made composite structure could possess, in a given frequency interval, a negative effective magnetic permeability μ_(eff). Combination of such a structure with negative effective permittivity medium ― for instance the regular array of thin metallic wires ― enabled the construction of meta-materials with both effective permittivity and permittivity negative, This was confirmed by experiments. Structures with negative permittivity and permittivity were named "left-handed" by Veselago over 30 years ago to emphasize the fact that the intensity of the electric field E. the magnetic intensity H and the wave vector k are related by a left-handed rule. This can be easily seen by writing Maxwell's equation for a plane monochromatic waive: k x E = ((ωμ)/c) H and k x H = -
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机译：在Pendry等人之后，在左手材料（LHM）上迅速增加兴趣。预测某些人造的复合结构可以在给定的频率间隔中具有负有效磁导液μ_（EFF）。这种结构与负有效介电常数的组合 - 例如常规薄金属线阵列 - 使得元材料构建具有有效介电常数和介电常数，这是通过实验证实的。具有负介电常数和介电常数的结构被Veselago在30年前被命名为“左撇子”，以强调电场E的强度。磁强度H和波矢量k是由左手规则相关的。通过写入麦克斯韦的方程可以容易地看到这一点单色放弃：k x e =（（ωμ）/ c）h和k x h = -
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