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Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
Published on: August 30, 2012
Comparison of parallel-plate and in-plane poled polymer films for terahertz sensing
Colin V McLaughlin1, Xuemei Zheng, L Michael Hayden
1Department of Physics, University of Maryland, Baltimore County, Baltimore, Maryland 21250, USA.
Abstract:
We have performed calculations and measurements of the efficacy of two poling geometries of poled electro-optic (EO) polymer films for use in sensing terahertz (THz) radiation via EO sampling. Taking reflective and absorptive losses into consideration, we find that a parallel-plate (PP) poled film has a sensitivity maximum when oriented at 55 degrees to the incident probe and THz beams. In addition, we show that our in-plane (IP) poled polymer films are comparable in sensitivity to PP-poled films and discuss the potential for improving IP-poled polymer devices.

