AI Article Synopsis
- A dynamics analysis of microspheres in a dual-beam fiber-optic trap with a transverse offset shows a progression of motion: capture, spiral, orbital rotation, and escape.
- As the offset distance between the beams increases, the microsphere transitions through these different motions, which can be analyzed using ray optics.
- The findings highlight critical offset distances affecting motion types, with implications for controlling microsphere movements in applications like microfluidics and lab-on-a-chip systems.
Article Abstract
A comprehensive dynamics analysis of microsphere has been presented in a dual-beam fiber-optic trap with transverse offset. As the offset distance between two counterpropagating beams increases, the motion type of the microsphere starts with capture, then spiral motion, then orbital rotation, and ends with escape. We analyze the transformation process and mechanism of the four motion types based on ray optics approximation. Dynamic simulations show that the existence of critical offset distances at which different motion types transform. The result is an important step toward explaining physical phenomena in a dual-beam fiber-optic trap with transverse offset, and is generally applicable to achieving controllable motions of microspheres in integrated systems, such as microfluidic systems and lab-on-a-chip systems.
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| http://dx.doi.org/10.1364/OE.24.007575 | DOI Listing |
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