如果有一个人说,太阳光越是照射我们,我们就会越冷。你肯定认为这个人是个疯子。这怎么可能呢?太阳光是电磁波,是能量,它传播到哪里,能量就流动到哪里,所到之处的能量密度(单位面积的能量)肯定会增加。处在阳光中的我们当然会越来越热了。
这些材料带有这种所谓的负折射率(negative index of refraction),特别有前途,可制作超级透镜、夜视隐身斗篷和复杂的电信波导。
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The negative refractive index materials are characterized by simultaneous negative permittivity and permeability,so the refractive index of this kind of materials is negative.
负折射率材料是指介电常数ε和磁导率μ都小于零的介质材料,在这种介质中折射率n为负数。
参考来源 - 金属/介质结构表面等离激元负折射现象的研究The optical character of the multiplayer system with a negative refractive index layer is investigated. By means of a transfer matrix method,the exact analytical expression of transmissivity has been derived.
研究了多层体系含负折射率层的光学传输特性,通过传输矩阵方法,给出了体系透射率的一般表达式,并讨论了含负折射率层的四层结构在入射角大于临界角时的反常光子隧穿现象。
参考来源 - 期刊学术社区The band gap structure and defect mode of one-dimensional photonic crystals constituted by alternate layers of negative refraction and positive refraction materials were studied by means of transfer matrix.
数值研究了由正折射率材料和负折射率材料交替组成的一维光子晶体的光学传输特性。
参考来源 - 数值研究含有特异材料光子晶体的传输特性·2,447,543篇论文数据,部分数据来源于NoteExpress
研究了含有负折射率缺陷的光子晶体中的局域缺陷模。
The local defect modes is investigated in photonic crystals with negative refractive index structural defects.
如果水具有负折射率,那么放在玻璃杯中的吸管似乎可能弯曲到自身下方。
If water had a negative index of refraction, then a straw placed in a glass would appear to bend back under itself.
利用传输矩阵方法研究了含负折射率缺陷的一维光子晶体的透射谱。
The transmission through one-dimensional photonic crystal with negative refractive index defects was studied by using transfer matrix method.
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