Transverse electric modes in planar slot waveguides |
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| Authors: | Yi Jiang Can Liu Yao Liu Yu Wang |
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| Affiliation: | 1. School of Science, Changchun University of Science and Technology, Changchun, China;2. School of Science, Changchun Institute of Technology, Changchun, China;3. Department of Physics, Aviation University of Air Force, Changchun, China |
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| Abstract: | Transverse electric (TE) modes in symmetrical planar slot waveguides are analytically solved, and a comprehensive knowledge about them is provided. It has been shown that there are four types of TE modes in planar slot waveguides just as the TM modes. Their field solutions, characteristic equations and cut-off conditions are derived. The cut-off conditions and the power confinement factors of the TE and TM modes are compared. It is demonstrated that there may be degeneration points between TE and TM modes. Because a three-dimensional waveguide has similar modal characteristics as its planar counterpart, our work presents a foundation of recognizing and utilizing the three-dimensional slot waveguides. |
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| Keywords: | Slot waveguide planar waveguide TE mode characteristic equation cut-off condition |
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