两个- Wave Interference引起的意外横向力的多极起源
Multipolar Origin of the Unexpected Transverse Force Resulting from Two-Wave Interference
摘要：
本文从理论上研究了TE和TM平面波叠加后与球体相互作用所产生的电磁力。具体来说，我们首先表明，在这样的照明条件下，球受到横向的波的传播方向的力。然后，我们分析了这种违反直觉的行为的物理起源，使用多极分解的电磁模式中涉及的散射过程。该分析表明，干涉效应，由于两波照明，导致一个Kerker样的非对称散射行为，导致这种特殊的横向力。
英文摘要：
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.
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