Electrothermoplasmonic Trapping and Dynamic Manipulation of Single Colloidal Nanodiamond
Electrothermoplasmonic Trapping and Dynamic Manipulation of Single Colloidal Nanodiamond
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DOI：
10.1021/acs.nanolett.1c00357
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发表时间：
2021-06-07
期刊：
影响因子：
10.8
通讯作者：
Ndukaife, Justus C.
中科院分区：
文献类型：
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作者：
Hong, Chuchuan;Yang, Sen;Ndukaife, Justus C.
纳米尺度物体的低功率捕获可以通过使用等离子体纳米天线附近的增强场来实现。不幸的是，在这种方法中，陷阱位点被限制在等离子体热点的位置，并且连续的动态操纵是不可行的。在这里，我们报告了一种低频电热等离子体镊子（LFET），它提供了低功耗，高稳定性和连续的动态操纵一个单一的纳米金刚石。LFET利用等离子体纳米柱天线阵列的激光照射和低频交流（ac）电场的组合作用来建立能够稳定捕获和动态操纵单个纳米金刚石的电流体动力学势。我们实验证明了快速运输，捕获，和动态操纵的一个单一的纳米金刚石使用低频交流场低于5 kHz和低激光功率为1 mW。这种用于纳米金刚石操作的纳米镊子平台有望用于量子信息处理和低噪声量子传感器的单光子源的可扩展组装。
Low-power trapping of nanoscale objects can be achieved by using the enhanced fields near plasmonic nanoantennas. Unfortunately, in this approach the trap site is limited to the position of the plasmonic hotspots and continuous dynamic manipulation is not feasible. Here, we report a low-frequency electrothermoplasmonic tweezer (LFET) that provides low-power, high-stability and continuous dynamic manipulation of a single nanodiamond. LFET harnesses the combined action of the laser illumination of a plasmonic nanopillar antenna array and low-frequency alternating current (ac) electric field to establish an electrohydrodynamic potential capable of the stable trapping and dynamic manipulation of single nanodiamonds. We experimentally demonstrate the fast transport, trapping, and dynamic manipulation of a single nanodiamond using a low-frequency ac field below 5 kHz and low-laser power of 1 mW. This nanotweezer platform for nanodiamond manipulation holds promise for the scalable assembly of single photon sources for quantum information processing and low noise quantum sensors.