Trapping and manipulation of a single micro-object in solution with femtosecond laser-induced mechanical force
Trapping and manipulation of a single micro-object in solution with femtosecond laser-induced mechanical force
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DOI：
10.1063/1.2472188
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发表时间：
2007-02
影响因子：
4
通讯作者：
Yuqiang Jiang;Y. Matsumoto;Y. Hosokawa;H. Masuhara;I. Oh
中科院分区：
文献类型：
--
作者：
Yuqiang Jiang;Y. Matsumoto;Y. Hosokawa;H. Masuhara;I. Oh
利用飞秒激光诱导的非线性现象，提出了一种非接触、非破坏性的捕获和操纵溶液中微粒的方法。利用飞秒激光脉冲在聚苯乙烯微球周围扫描，利用冲击波、空泡和射流等作用，捕获并操纵了直径为90μm的聚苯乙烯微球。激光辐照产生的最大机械力估计超过1μN。与传统的光镊相比，这种方法不仅提供了更大的捕获力，而且具有非侵入性的优点。
A nondestructive and noncontact method to trap and manipulate a microparticle in solution is proposed by utilizing femtosecond laser-induced nonlinear phenomena. A 90μm diameter polystyrene bead in solution was trapped and manipulated by scanning femtosecond laser pulses around it, which was ascribed to shockwave, cavitation bubble, and jet flow. The maximum mechanical force exerted by laser irradiation was estimated to be over 1μN. In comparison with conventional optical tweezers, this method provides not only a much larger trapping force but also a noninvasive advantage.