Difference between revisions of "Optical Tweezers"
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(New page: Entry by Haifei Zhang, AP 225, Fall 2009 == Overview ==) |
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− | == | + | == What is optical tweezers == |
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+ | Optical Tweezers use light to manipulate microscopic objects as small as a single atom. The radiation pressure from a focused laser beam is able to trap small particles. In the biological sciences, these instruments have been used to apply forces in the pN-range and to measure displacements in the nm range of objects ranging in size from 10 nm to over 100 mm. | ||
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+ | == The physics of optical tweezers == | ||
+ | [[Image:Optical-tweezer-fig1.jpg]] |
Revision as of 00:15, 18 September 2009
Entry by Haifei Zhang, AP 225, Fall 2009
What is optical tweezers
Optical Tweezers use light to manipulate microscopic objects as small as a single atom. The radiation pressure from a focused laser beam is able to trap small particles. In the biological sciences, these instruments have been used to apply forces in the pN-range and to measure displacements in the nm range of objects ranging in size from 10 nm to over 100 mm.