Chinese Optics Letters, 2016, 14 (7): 072401, Published Online: Aug. 3, 2018
Propagation properties of the terahertz waveguide using a metallic nanoslit narrower than skin depth Download: 792次
Abstract
A terahertz (THz) waveguide using a metallic nanoslit whose width is much smaller than the skin depth is analytically investigated. By taking some important physical properties into account, we derive a simple, yet accurate, expression for the effective index. We also study the changes in modal field and the attenuation coefficient in the whole THz region, and find some interesting physical properties. Finally, we verify that these theoretical analyses coincide with the rigorous numerical simulations. This research can be useful for various applications of THz waveguides made of metallic nanoslits.
Jie Yang, Gongwei Lin, Yueping Niu, Yihong Qi, Fengxue Zhou, Shangqing Gong. Propagation properties of the terahertz waveguide using a metallic nanoslit narrower than skin depth[J]. Chinese Optics Letters, 2016, 14(7): 072401.