Optical Trapping - MIT

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Aug 11, 2017 · use of optical forces to trap dielectric microspheres held within a thin layer of water and vesicles in onion cells. The typical mechanical forces involved are on the scale of piconewtons (10 12 N). Relative to this scale, hydrody-namical forces (drag and di usion) on the microspheres and vesicles are substantial. Thus, the optical trap pro-

  Microspheres