Laser microfabrication and rotation of ship-in-a-bottle optical rotators
Laser microfabrication and rotation of ship-in-a-bottle optical rotators
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DOI：
10.1063/1.2967872
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发表时间：
2008-08
影响因子：
4
通讯作者：
S. Matsuo;S. Kiyama;Y. Shichijo;T. Tomita;S. Hashimoto;Y. Hosokawa;H. Masuhara
中科院分区：
文献类型：
--
作者：
S. Matsuo;S. Kiyama;Y. Shichijo;T. Tomita;S. Hashimoto;Y. Hosokawa;H. Masuhara
我们在二氧化硅衬底中制作了光学旋转器，并利用激光捕获技术对其进行旋转。采用的制备方法是飞秒激光辅助刻蚀，即用飞秒激光脉冲沿预先设计的图案照射对宿主材料进行改性，然后进行选择性化学刻蚀。旋转器由与衬底相同的材料组成，可以在微腔内移动，但无法出来。转速与捕获激光功率成正比，最大可达100rpm。这种旋转器将适用于微全分析系统和微流体。
We have fabricated optical rotators inside a silica substrate and rotated them by a laser trapping technique. The fabrication method used was femtosecond laser-assisted etching, i.e., modification of the host material by irradiation with femtosecond laser pulses along a predesigned pattern, followed by selective chemical etching. The rotators, which consist of the same material as the substrate, can move inside the microcavity but cannot get out. The rotation speed was proportional to the trapping laser power, and the maximum achieved was about 100rpm. Such rotators will be applicable to micro-total-analysis systems and microfluidics.