Abstract

We describe an experimental and theoretical characterization of rectangular resonant cavities integrated into parallel-plate waveguides, using terahertz pulses. When the waveguide is excited with the lowest-order transverse- electric mode, these cavities exhibit resonances with narrow linewidths. Broadband transmission spectra are compared with the results of mode-matching calculations, for various cavity dimensions.

© 2011 Optical Society of America

A mode-matching analysis of dielectric-filled resonant cavities coupled to terahertz parallel-plate waveguides

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