论文标题
两波干扰产生的意外横向力的多极根源
Multipolar Origin of the Unexpected Transverse Force Resulting from Two-Wave Interference
论文作者
论文摘要
我们提出了一项关于由TE和TM平面波与球体相互作用的电磁力的理论研究。具体而言，我们首先表明，在这种照明条件下，球受到了向波的传播方向横向的力。然后，我们使用参与该散射过程的电磁模式的多极分解来分析这种反直觉行为的物理起源。该分析表明，由于两波照明，干扰效应导致类似Kerker的不对称散射行为，导致这种特殊的横向力。
We propose a theoretical study on the electromagnetic forces resulting from the superposition of a TE and TM plane waves interacting with a sphere. Specifically, we first show that, under such an illumination condition, the sphere is subjected to a force transverse to the propagation direction of the waves. We then analyze the physical origin of this counter-intuitive behavior using a multipolar decomposition of the electromagnetic modes involved in that scattering process. This analysis reveals that interference effects, due to the two-wave illumination, lead to a Kerker-like asymmetric scattering behavior resulting in this peculiar transverse force.
