JoVE Journal

Engineering

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Nanyang Technological University

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

The procedure for implementing a refractive index sensor for terahertz frequencies based on a grooved parallel-plate waveguide geometry is described here. The method yields a measurement of the refractive index of a small volume of liquid through monitoring of the shift in the resonant frequency of the waveguide structure

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