利用转移矩阵方法,研究了双层损耗型单负特异材料结构的透射性质。从结构的反射率和吸收率的角度分析,发现该双层结构的透射率随着耗散系数的增大和其中一种材料厚度的增大,都呈现出非单调的变化趋势,这种奇异的性质完全不同于普通的损耗型介电材料。
The transmission properties of the bilayer structure for the lossy single-negative metamaterials are studied by using transfer matrix. Considering combined influences of both reflectance and absorbance, we find that the variation of transmittance is non-monotonous as the dissipation coefficient increases and the thickness increases of one kind of lossy single-negative metamaterial in pair structure consisting of two kinds of single-negative metamaterials. Such surprising behavior is quite different from our usual picture for the lossy dielectric materials.