We experimentally investigate the terahertz energy confinement in finite-width parallel-plate waveguides. Although there is some apparent energy confinement parallel to the plates due to the narrowing of the width, this does not result in actual energy conservation, when the plate separation is as large as 1 cm. However, these findings indicate that by reducing the plate separation, it may be possible to achieve real energy confinement along with energy conservation in these waveguides.

Date Published: 4 August 2009
PDF: 6 pages
Proc. SPIE 7385, International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications, 73851K (4 August 2009); doi: 10.1117/12.836722

Published in SPIE Proceedings Vol. 7385:
International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications
X.-C. Zhang; James M. Ryan; Cun-lin Zhang; Chuan-xiang Tang, Editor(s)