Varault S, Rolly B, Boudarham G, Demésy G, Stout B, Bonod N
CNRS, Aix-Marseille Université, Ecole Centrale Marseille, Institut Fresnel, Campus of Saint Jérôme, 13013 Marseille, France.
Opt Express. 2013 Jul 15;21(14):16444-54. doi: 10.1364/OE.21.016444.
We show the important role played by the multipolar coupling between the illuminating field and magneto-electric scatterers even in the small particle limit (λ/10). A general multipolar method is presented which, for the case of planar non centrosymmetric particles, generates a simple expression for the polarizability tensor that directly links the dipolar moment to the incident field. The relevancy of this approach is demonstrated by comparing thoroughly the dipolar moments predicted by the method with full numerical calculations.
我们展示了即使在小颗粒极限（λ/10）下，照明场与磁电散射体之间的多极耦合所起的重要作用。提出了一种通用的多极方法，对于平面非中心对称颗粒的情况，该方法生成了一个极化率张量的简单表达式，该表达式直接将偶极矩与入射场联系起来。通过将该方法预测的偶极矩与全数值计算进行全面比较，证明了这种方法的相关性。
