Hybrid Optical and Diffusiophoretic Nanomanipulation Using All-Dielectric Anapole-Enhanced Thermonanophotonics
Hybrid Optical and Diffusiophoretic Nanomanipulation Using All-Dielectric Anapole-Enhanced Thermonanophotonics
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DOI：
10.1021/acsphotonics.3c00983
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发表时间：
2023-09
期刊：
影响因子：
7
通讯作者：
I. Hong;Theodore Anyika;Chuchuan Hong;Sen Yang;Justus C. Ndukaife
中科院分区：
文献类型：
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作者：
I. Hong;Theodore Anyika;Chuchuan Hong;Sen Yang;Justus C. Ndukaife
：我们提出了一个非侵入性的平台，结合了近场光学梯度力从nonradiating anapole nanotenna与diffusiophoretic力，以实现纳米粒子的运输，捕获和操纵。我们的方法利用基于a-Si的纳米圆柱体支持光学anapole，并作为可见波长的纳米级热源，导致产生的扩散电泳力，使纳米级颗粒的精确操作。这些操作在含有10%聚（乙二醇）聚合物分子的水介质中进行。通过实验演示，我们成功地传输和操纵的anapole阵列间距为2，3，和5 μ m，使用低激光强度为0.2 mW/μ m2的300 nm的PS珠。光学梯度力和光热诱导的扩散电泳力的协同集成通过提供对纳米尺寸的物体施加控制的手段而为纳米科学和生命科学的进步提供了巨大的潜力。
: We present a noninvasive platform that combines the near-field optical gradient force from a nonradiating anapole nanoantenna with a diffusiophoretic force to achieve nanoscale particle transportation, trapping, and manipulation. Our approach utilizes a-Si-based nanocylinder supporting optical anapoles and serves as a nanoscale heat source at visible wavelengths, resulting in the generation of a diffusiophoretic force that enables the precise manipulation of nanoscale particles. These manipulations are performed in a water medium containing 10% poly(ethylene glycol) polymer molecules. Through experimental demonstrations, we successfully transport and manipulate a 300 nm PS bead on anapole arrays spaced at 2, 3, and 5 μ m, using a low laser intensity of 0.2 mW/um 2 . The synergistic integration of the optical gradient force and the photothermally induced diffusiophoretic force holds immense potential for advancements in nanoscience and life science by providing the means to exert control over nanosized objects.