Frank R. Libsch, Takatoshi Tsujimura
Active Matrix Liquid Crystal Displays Technology and Applications 1997
Paper
A Cherenkov Source for Freely-Propagating Terahertz Beams’
Abstract
Using a unique cylindrical optical arrangement, we have coupled out a Cherenkcv electromagnetic shock wave from the confining dielectric substrate and have used this shock wave as a source to produce freely-propagating terahertz beams. The shock wave is initially generated by a surface-dipole distribution propagating faster than the phase velocity in the underlying dielectric substrate. © 1989 IEEE