Optical Tweezers And Spanners
Optical Tweezers And Spanners
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DOI：
10.1088/2058-7058/10/9/22
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发表时间：
1997-09
期刊：
影响因子：
0.6
通讯作者：
M. Padgett;L. Allen
中科院分区：
文献类型：
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作者：
M. Padgett;L. Allen
如果没有某种激光设备，任何漫画科幻故事都是不完整的。激光通常是致命的武器，也似乎是奇怪的医疗工具，或者是捕捉和偏离外星航天器的装置。物理学家自然会高度怀疑使用激光捕获宏观物体的可能性，但快速浏览一下最新的研究就会发现不同的情况。激光现在被广泛用于生物技术实验室，用来操纵活细胞、寄生虫，甚至是DNA单链--而实际上必须接触到样本。
No comic-book science-fiction story would be complete without a laser gadget of some description. Often featuring as deadly weapons, lasers also appear as strange medical tools or as devices to trap and deflect alien spacecraft. Physicists will naturally be highly sceptical about the possibility of using lasers to trap macroscopic objects, but a quick glance at the latest research reveals a different picture. Lasers are now widely used in biotechnology laboratories to manipulate living cells, parasites and even single strands of DNA – and a nothing has to actually touch the samples.