Surface modes in slab waveguides with a left handed materials cover

• 作 者: 李素萍 王子华 沈陆发
• 机 构: School of Communication and Information Engineering, Key Laboratory of Special Fiber Optics and Opti
• 出 处: Optoelectronics Letters
• 发表日期: 2009年02期
• 关键词: handed normalized waveguide dielectric compensate analytically constitutive coor

The surface mode propagation along a dielectric slab waveguide which consists of the core and substrate of right handed materials (RHM) and the cover of left handed materials (LHM) is studied. The normalized frequency and normalized propagation constant are introduced to the left-handed material slab waveguides. The dispersion relations expressed by the normalized parameters are derived. Universal dispersion curves are obtained analytically. Based on that, the dispersion properties differ dramatically for different LHM constitutive parameters, the surface TE0 and TE1 modes are internatively obtained. It shows that two different kinds of TE modes compensate each other to form a whole mode.

The surface mode propagation along a dielectric slab waveguide which consists of the core and substrate of right handed materials (RHM) and the cover of left handed materials (LHM) is studied. The normalized frequency and normalized propagation constant are introduced to the left-handed The dispersion relations expressed by the normalized parameters are derived. The dispersion relations expressed by the normalized parameters are derived. Based on that, the dispersion properties differ dramatically for different LHM constitutive parameters, the surface TE0 and TE1 modes are derivedly. It shows that two different kinds of TE modes compensate each other to form a whole mode.