RIS ID
14204
Abstract
It is analytically shown that the presence of submicrometer-sized air gaps between the dielectric and metal contact surfaces in a dielectric-filled metallic parallel-plate waveguide can have a dramatic effect on the guided-wave propagation of subpicosecond terahertz pulses. Through the use of metal-evaporated dielectric surfaces to overcome the imperfect contact problem, and a special air-dielectric-air cascaded waveguide geometry to avoid multimode excitation, undistorted subpicosecond terahertz pulse propagation via the single-TEM mode is demonstrated, for what is believed to be the first time, in a silicon-filled PPWG.
Publication Details
Mendis, R. (2006). Nature of subpicosecond terahertz pulse propagation in practical dielectric-filled parallel-plate waveguides. Optics Letters, 31 (17), 2643-2645. Copyright the Optical Society.