Nano-particle transport and the prediction of a valid area to be trapped based on a plasmonic antenna array.
Nano-particle transport and the prediction of a valid area to be trapped based on a plasmonic antenna array.
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基于等离子体天线阵列的纳米颗粒输运和有效捕获区域预测
DOI：
10.1039/d0ra10946k
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发表时间：
2021-03-23
期刊：
影响因子：
3.9
通讯作者：
Cui YP
中科院分区：
文献类型：
--
作者：
Lu CG;Hu XF;Yuan ZR;Cui YP
当光在局域能量和自由传播辐射之间转换时，光学天线有希望用于光学捕获和粒子操纵。在本文中，我们提出了一个数值方法的纳米粒子的传输使用的光学力场的等离子体Au天线阵列。等离子体激元Au天线阵列被设计为在被平面波照射时产生强近场热点。热点起到光阱的作用，可通过其谐振波长单独寻址。通过顺序地改变陷阱，纳米颗粒可以在相邻的陷阱之间切换。我们还证明了一个有效的区域，在该区域中的纳米粒子可以被捕获和转移稳定通过讨论的捕获潜力，粒子遇到。模拟和计算结果表明，该方法在生化诊断和高精度光学操作等领域具有广阔的应用前景。纳米粒子稳定捕获的有效区域的预测。
Optical antennas are promising for optical trapping and particle manipulation, when converting light between localized energy and freely propagating radiation. In this paper, we proposed a numerical method for the transport of nanoparticles using the optical force field over a plasmonic Au antenna array. The plasmonic Au antenna array is designed to produce strong near-field hot spots when illuminated by a plane wave. The hot spots function as optical traps, separately addressable by their resonant wavelengths. By changing the traps sequentially, the nanoparticles can be handed off between adjacent traps. We also demonstrated a valid area in which the nanoparticles could be trapped and transferred stably by discussing the trapping potential that particles encountered. The simulated and calculated results showed that this method had promising applications in the field of biochemical diagnoses and high-accuracy optical manipulation. The prediction of the valid area in which the nanoparticles can be trapped stably.
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影响因子：
3.6
作者：
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影响因子：
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