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Optical forces from an evanescent wave on a magnetodielectric small particle

机译:van逝波对磁电小颗粒的光学作用力

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摘要

We report the first study on the optical force exerted by an evanescent wave on a small sphere with both electric and magnetic responses to the incident field, immersed in an arbitrary nondissipative medium. New expressions and effects from their gradient, radiation pressure, and curl components are obtained owing to the particle induced electric and magnetic dipoles, as well as to their mutual interaction. We predict possible dramatic changes in the force depending on the host medium, the polarization, and the nature of the surface wave.
机译:我们报告了关于study逝波在小球体上施加的光学力的首次研究,该小球体对入射场具有电磁响应,并浸没在任意非耗散介质中。由于粒子感应的电和磁偶极子以及它们之间的相互作用,因此可以从它们的梯度,辐射压力和卷曲分量中获得新的表达式和效果。我们根据主体介质,极化和表面波的性质来预测力的可能急剧变化。

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