论文标题
探测金属对低频S偏离渐态田地的响应
Probing the response of metals to low-frequency s-polarized evanescent fields
论文作者
论文摘要
通过测量厚度金属板上方的振荡磁偶极子的磁场的横向组件，提出了金属对低频S偏离evanevanscent波的响应函数的实验测试。这一建议是由以下事实激发的：使用DRUDE响应函数的LIFSHITZ理论与在超过150〜nm的分离时进行的Casimir力量的高精度测量矛盾。磁场的横向成分的分析表达式是根据板金属的反射系数报告的，由S偏离的evanevanscent波动完全确定。对于介电响应的不同模型的实验参数的合理值，进行了数值计算。所得字段因数量级的顺序而不同，具体取决于在计算中使用了DRUDE还是等离子体响应函数。因此，磁场的测量将允许区分这两个选项。讨论了获得的结果的可能应用。
Experimental test for the response function of metals to the low-frequency s-polarized evanescent waves is proposed by measuring the lateral component of magnetic field of an oscillating magnetic dipole spaced above a thick metallic plate. This suggestion is motivated by the fact that the Lifshitz theory using the Drude response function is in contradiction with high-precision measurements of the Casimir force performed at separations exceeding 150~nm. Analytic expressions for the lateral components of the magnetic field, which are fully determined by the s-polarized evanescent waves, are reported in terms of the reflection coefficients of the plate metal. Numerical computations are performed for the reasonable values of the experimental parameters for different models of the dielectric response. The resulting fields differ by the orders of magnitude depending on whether the Drude or plasma response function is used in computations. Thus, the measurement of the magnetic field will allow to discriminate between these two options. Possible applications of the obtained results are discussed.
