Multipolar origin of electromagnetic transverse force resulting from two-wave interference

Article

关键词: OPTICAL FORCES;    MANIPULATION;    PARTICLES;    LIGHT;   

DOI  :  10.1103/PhysRevB.102.085107

来源: SCIE

【 摘 要 】

We propose a theoretical study on the electromagnetic forces resulting from the superposition of 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 counterintuitive 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.

【 授权许可】

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