Efficient Waveguide Mode Conversions by Spoof Surface Plasmon Polaritons at Terahertz Frequencies
In this paper, waveguide mode conversions in a parallel plate waveguide, rectangular waveguide, and circular waveguide are all demonstrated at terahertz frequencies. Different from the traditional ways to realize mode conversions, an ultracompact design method based on the inner-embedded subwaveleng...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7809034/ |
| _version_ | 1819162839576739840 |
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| author | Heng-He Tang Bin Huang Tie-Jun Huang Yunhua Tan Pu-Kun Liu |
| author_facet | Heng-He Tang Bin Huang Tie-Jun Huang Yunhua Tan Pu-Kun Liu |
| author_sort | Heng-He Tang |
| collection | DOAJ |
| description | In this paper, waveguide mode conversions in a parallel plate waveguide, rectangular waveguide, and circular waveguide are all demonstrated at terahertz frequencies. Different from the traditional ways to realize mode conversions, an ultracompact design method based on the inner-embedded subwavelength metallic gratings is provided. The principle of the method relies on modulating the phase velocities of spoof surface plasmon polaritons (SSPPs) supported on the gratings to generate π phase difference. Owing to the gradient matching the phase velocities of the waveguide modes and SSPPs, the efficiencies of the mode conversions are considerable. The output mode purities of the both demonstrations are very good. Besides, waveguide bend is also achieved by this method. The work in this paper hopes to establish a universal technique for compact waveguide mode control, especially in the terahertz frequency range. |
| first_indexed | 2024-12-22T17:34:37Z |
| format | Article |
| id | doaj.art-4c15784690d249b1bef21c77e311b4da |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-22T17:34:37Z |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-4c15784690d249b1bef21c77e311b4da2022-12-21T18:18:32ZengIEEEIEEE Photonics Journal1943-06552017-01-019111010.1109/JPHOT.2016.26458957809034Efficient Waveguide Mode Conversions by Spoof Surface Plasmon Polaritons at Terahertz FrequenciesHeng-He Tang0Bin Huang1Tie-Jun Huang2Yunhua Tan3Pu-Kun Liu4School of Electronics Engineering and Computer Science, Peking University, Beijing, ChinaSchool of Electronics Engineering and Computer Science, Peking University, Beijing, ChinaSchool of Electronics Engineering and Computer Science, Peking University, Beijing, ChinaSchool of Electronics Engineering and Computer Science, Peking University, Beijing, ChinaSchool of Electronics Engineering and Computer Science, Peking University, Beijing, ChinaIn this paper, waveguide mode conversions in a parallel plate waveguide, rectangular waveguide, and circular waveguide are all demonstrated at terahertz frequencies. Different from the traditional ways to realize mode conversions, an ultracompact design method based on the inner-embedded subwavelength metallic gratings is provided. The principle of the method relies on modulating the phase velocities of spoof surface plasmon polaritons (SSPPs) supported on the gratings to generate π phase difference. Owing to the gradient matching the phase velocities of the waveguide modes and SSPPs, the efficiencies of the mode conversions are considerable. The output mode purities of the both demonstrations are very good. Besides, waveguide bend is also achieved by this method. The work in this paper hopes to establish a universal technique for compact waveguide mode control, especially in the terahertz frequency range.https://ieeexplore.ieee.org/document/7809034/Mode conversionspoof surface plasmon polaritons (SSPPs)terahertzwaveguide bend. |
| spellingShingle | Heng-He Tang Bin Huang Tie-Jun Huang Yunhua Tan Pu-Kun Liu Efficient Waveguide Mode Conversions by Spoof Surface Plasmon Polaritons at Terahertz Frequencies IEEE Photonics Journal Mode conversion spoof surface plasmon polaritons (SSPPs) terahertz waveguide bend. |
| title | Efficient Waveguide Mode Conversions by Spoof Surface Plasmon Polaritons at Terahertz Frequencies |
| title_full | Efficient Waveguide Mode Conversions by Spoof Surface Plasmon Polaritons at Terahertz Frequencies |
| title_fullStr | Efficient Waveguide Mode Conversions by Spoof Surface Plasmon Polaritons at Terahertz Frequencies |
| title_full_unstemmed | Efficient Waveguide Mode Conversions by Spoof Surface Plasmon Polaritons at Terahertz Frequencies |
| title_short | Efficient Waveguide Mode Conversions by Spoof Surface Plasmon Polaritons at Terahertz Frequencies |
| title_sort | efficient waveguide mode conversions by spoof surface plasmon polaritons at terahertz frequencies |
| topic | Mode conversion spoof surface plasmon polaritons (SSPPs) terahertz waveguide bend. |
| url | https://ieeexplore.ieee.org/document/7809034/ |
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