arXiv physics/06072312006-07-26physics.opticsphysics.comp-ph

复杂结构光学微操作的有效建模

Towards efficient modelling of optical micromanipulation of complex structures

T. A. Nieminen, V. L. Y. Loke, A. M. Branczyk, N. R. Heckenberg, H. Rubinsztein-Dunlop

备注：: 5 pages, 4 figures
发表信息：: pp. 442-446 in PIERS 2006 Cambridge Proceedings, The Electromagnetics Academy, Cambridge, MA (2006)

摘要：

电磁散射和光散射的计算方法可用于计算光学力和力矩。由于被光学捕获或操纵的典型粒子的尺寸在波长的量级上，因此诸如几何光学或瑞利散射之类的近似方法是不适用的，并且必须求助于麦克斯韦方程组或矢量亥姆霍兹方程的解。传统上，这种解决方案只适用于最简单的几何形状;现代计算能力使更一般的快速解决方案-但仍然简单-几何形状，如轴对称，均匀和各向同性散射体。然而，光学驱动的微机械必然需要更复杂的几何形状，因此它们的计算建模仍然处于具有挑战性的计算问题领域。我们审查我们的进展，有效的计算建模的光镊和微操作，包括捕获和操作的复杂结构，如光学微机械。特别是，我们认为利用对称性的建模等设备。

英文摘要：

Computational methods for electromagnetic and light scattering can be used for the calculation of optical forces and torques. Since typical particles that are optically trapped or manipulated are on the order of the wavelength in size, approximate methods such as geometric optics or Rayleigh scattering are inapplicable, and solution or either the Maxwell equations or the vector Helmholtz equation must be resorted to. Traditionally, such solutions were only feasible for the simplest geometries; modern computational power enable the rapid solution of more general--but still simple--geometries such as axisymmetric, homogeneous, and isotropic scatterers. However, optically-driven micromachines necessarily require more complex geometries, and their computational modelling thus remains in the realm of challenging computational problems. We review our progress towards efficient computational modelling of optical tweezers and micromanipulation, including the trapping and manipulation of complex structures such as optical micromachines. In particular, we consider the exploitation of symmetry in the modelling of such devices.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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英文摘要：

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