Highly-Confined Guiding of Terahertz Waves Along Subwavelength Grooves

• Published in: IEEE photonics technology letters Vol. 24; no. 15; pp. 1343 - 1345
• Main Authors: Gao, Zhen, Shen, Linfang, Zheng, Xiaodong
• Format: Journal Article
• Language: English
• Published: IEEE 01.08.2012
• Subjects: Metals; Metamaterials; Optical surface waves; Optical waveguides; Optimized production technology; Plasmons; surface plasmon polaritons; Surface waves; terahertz; waveguides

We propose a scheme of guiding and manipulating terahertz waves that features tight confinement and large propagation length, even when the waveguide lateral dimensions are well in the subwavelength regime. In a tapered structure of the proposed groove waveguide, the guided mode can be stopped at di...