Air-Liquid Interfacial Microlens Controlled by Active Pressure

6 Air-Liquid Interfacial Microlens Controlled by Active Pressure 

To focus light, a static convergent polymer lens was coupled with the air-water lens. This polymer lens was made of PDMS and bent into an air gap. The focal length of the combination of the two lenses was tuned by adjusting the flow rate of the DI water in the straight microchannel. When this 

Relative Flow Rate (Core/Cladding (fcore = nL/min) 

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