Radiation force induced by resonant light: from atom to nanoparticle
Radiation force induced by resonant light: from atom to nanoparticle
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DOI：
10.1016/j.jlumin.2004.01.074
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发表时间：
2004-06
影响因子：
3.6
通讯作者：
T. Iida;H. Ishihara
中科院分区：
文献类型：
--
作者：
T. Iida;H. Ishihara
我们推导出电子共振光诱导的辐射力的解析表达式，适用于从原子到纳米颗粒的尺寸范围。这些方法是基于麦克斯韦应力张量法和微观响应理论。辐射力表示为散射力、吸收力和附加项的总和，所述附加项是由来自光激子耦合模式的内部场的不对称空间分布引起的。在粒子的半径为几十nm的情况下，特别有趣的一点是，在某些条件下，这些项的相当大的贡献表现为与平面波光传播方向相反的力。
We derive analytical expressions for the radiation force induced by electronically resonant light which apply over the size range from atoms to nanoparticles. These are based on the method of Maxwell stress tensor and microscopic response theory. The radiation force is expressed as a sum of a scattering force, an absorbing force and additional terms arising from the asymmetric spatial distribution of the internal field from light-exciton coupled modes. In the case of a particle with a radius of few tens of nm, a particular interesting point is that, under certain conditions, substantially large contributions from these terms appear as forces in opposite direction to the direction of propagation of plane wave light.