Parallel trapping of multiwalled carbon nanotubes with optoelectronic tweezers
Parallel trapping of multiwalled carbon nanotubes with optoelectronic tweezers
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DOI：
10.1063/1.3212725
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发表时间：
2009-09-14
影响因子：
4
通讯作者：
Wu, Ming C.
中科院分区：
文献类型：
--
作者：
Pauzauskie, Peter J.;Jamshidi, Arash;Wu, Ming C.
在这里，我们报道了使用光电镊子和动态虚拟电极来处理多壁碳纳米管(MWCNT)，其陷阱刚度值大约为50fN/µm。单个MWCNT的高速平移(>；200µm/S)和MWCNT整体的二维陷阱都是用比单光束激光镊子低100,000倍的光功率密度来实现的。通过调节虚拟电极的强度，可以在秒的时间尺度上调整MWCNT集合的数密度，有望在MWCNT科学和技术中得到广泛的应用。(C)2009年美国物理研究所。[DOI：10.1063/1.3212725]
Here we report the use of optoelectronic tweezers and dynamic virtual electrodes to address multiwalled carbon nanotubes (MWCNTs) with trap stiffness values of approximately 50 fN/mu m. Both high-speed translation (>200 mu m/s) of individual-MWCNTs and two-dimensional trapping of MWCNT ensembles are achieved using 100,000 times less optical power density than single beam laser tweezers. Modulating the virtual electrode's intensity enables tuning of the MWCNT ensemble's number density by an order of magnitude on the time scale of seconds promising a broad range of applications in MWCNT science and technology. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3212725]