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Optically activated core flow shifting within a focused flow
DOI:10.1063/1.3623443.png)
摘要
En 中文
We report on the application of an optical beam to redirect sheathed micro-fluidic flow without direct interaction with the sample. The hydrodynamic properties of the sheath are locally modified due to optical heating, resulting in a spatial shift of the sample flow. We characterize this technique for a range of flow rates and demonstrate up to 100 mu m shift at peak flow velocities of 19 mm/s. We also model the temperature and viscosity changes, as well as the flow velocity profiles for a two-fluid flow with different viscosities. The calculated shifts in the flow profile correspond well with the measured shifts. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3623443]
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IF:
3.6
论文数:
10.4W
被引数:
17.8W
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