Direct Measurement of Femtosecond Laser Impulse in Water by Atomic Force Microscopy
Direct Measurement of Femtosecond Laser Impulse in Water by Atomic Force Microscopy
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DOI：
10.1143/apex.3.107002
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发表时间：
2010-01-01
影响因子：
2.3
通讯作者：
Hosokawa, Yoichiroh
中科院分区：
文献类型：
--
作者：
Iino, Takanori;Hosokawa, Yoichiroh
利用原子力显微镜（AFM）直接测量通过经由物镜透镜将飞秒激光聚焦到水中而产生的冲击力。分析了冲击力作用下AFM悬臂梁的瞬时弯曲运动，并提出了一种定量方法，其量级为10（-12）Ns，相当于μ s时间尺度上μ N的平均力。定量化创建了一个新的方式来估计细胞间粘附强度，因为它是可能的解离细胞间粘附的冲击力。(C)2010日本应用物理学会
An impulsive force generated by focusing a femtosecond laser into water through an objective lens was directly measured utilizing an atomic force microscope (AFM). We analyzed the transient bending movement of the AFM cantilever initiated by the impulsive force and suggested a procedure to quantify it. The order was 10(-12) Ns, corresponding to the average force of mu N in mu s timescale. The quantification creates a new way of estimating intercellular adhesion strength, because it is possible to dissociate cell-cell adhesion by the impulsive force. (C) 2010 The Japan Society of Applied Physics