Electrodynamic mechanism and array stability in optical binding
Electrodynamic mechanism and array stability in optical binding
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DOI：
10.1016/j.optcom.2007.10.026
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发表时间：
2008-02-15
影响因子：
2.4
通讯作者：
Andrews, David L.
中科院分区：
文献类型：
--
作者：
Romero, Luciana C. Davila;Rodriguez, Justo;Andrews, David L.
解决光诱导纳米粒子之间的相互作用，量子电动力学研究的新成果，产生的表面表示的势能与各种几何自由度的变化-每个粒子相对于彼此的位置和方向，并通过辐射。结果采取能源景观的形式，表现出高度详细的地形特征。这些功能的分析有助于确定可能的稳定点与光学绑定，并识别其他各向异性的功能，揭示了当地的力和扭矩的操作。扩展以前的理论，本研究给出了结果的偏振光和非偏振光，也提供了一个重要的分析多极相互作用的意义。结果表明，对潜在的提供了一个原型模板的光学组件的大量的粒子，并给出了讨论的可能性，光学制造结构使用偏振或非偏振激光束。结果适用于光学捕获的分子，纳米颗粒，微粒，胶体等。（C）2007 Elsevier B. V.保留所有权利。
Addressing optically induced interactions between nanoparticles, new results from quantum electrodynamical studies are employed to produce surfaces representing the variation of potential energy with the various geometric degrees of freedom - the positions and orientations of each particle relative to each other, and to the throughput radiation. The results take the form of energy landscapes exhibiting highly detailed topographic features. The analysis of these features facilitates the determination of possible stability points associated with optical binding, and the identification of other, anisotropic features revealing the operation of local forces and torques. Extending previous theory, the present study gives results for both polarized and non-polarized light, also providing a critical analysis of the significance of multipole interactions. It is shown that the pair potential provides a prototypical template for the optical assembly of larger numbers of particles, and a discussion is given of the possibilities to optically fabricate structures using polarized or non-polarized laser beams. The results are applicable to optically trapped molecules, nanoparticles, microparticles, colloids, etc. (C) 2007 Elsevier B.V. All rights reserved.