Super energy flows in a waveguide filled with air and left-handed materials

• 来源期刊: 中国物理B（英文版）
• 关键词: super energy flows left-handed materials
• 年，卷（期）: 2008,（1）
• 页码范围: 164-169
• 页数: 6页
• 语种: 英文

摘要

The phenomena of super energy flows are studied theoretically and numerically in a parallel-plate waveguide which is filled with two layered equally-thick different media,i.e.air and specific left-handed materials (LHM) with 6r1 =-1/(1+5) + iγ and μr1=-(1 +δ) + iγ.In this special waveguide,two-directional super-energy flows are excited by a three-dimensional horizontal electric dipole at the same time,which has transmission patterns different from those of two-dimensional source and three-dimensional vertical electric dipole.We also show that the retardation and loss in LHM are sensitive to the amplitude of super power densities,and the dimensions of waveguide determine the propagating modes,which makes super energy flows more practical.