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August 30, 2012
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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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Astley, V., Reichel, K., Mendis, R., Mittleman, D. M. Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor. J. Vis. Exp. (66), e4304, doi:10.3791/4304 (2012).
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