Reducing Transmission Losses in Hollow THz Waveguides
Research on reducing material absorption in Terahertz (THz) waveguides has lead to development of guiding structures with transmission losses as low as 1 dB/m. Among waveguides that exhibit low loss at THz frequencies are the dielectric-lined hollow cylindrical metallic waveguides. Loss reduction in...
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| Veröffentlicht in: | IEEE transactions on terahertz science and technology 2011-09, Vol.1 (1), p.124-132 |
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| container_title | IEEE transactions on terahertz science and technology |
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| creator | Mitrofanov, O. James, R. Fernandez, F. A. Mavrogordatos, T. K. Harrington, J. A. |
| description | Research on reducing material absorption in Terahertz (THz) waveguides has lead to development of guiding structures with transmission losses as low as 1 dB/m. Among waveguides that exhibit low loss at THz frequencies are the dielectric-lined hollow cylindrical metallic waveguides. Loss reduction in this waveguide is attributed to an ideal profile of the dominant hybrid HE 11 mode. This mode profile also results in relatively low dispersion and very high coupling efficiency. In this contribution we overview properties of dielectric-lined hollow cylindrical metallic waveguides for THz waves, their design principles and the fabrication process. The impact of the mode profile on losses and dispersion at THz frequencies is confirmed experimentally by THz near-field imaging and THz time-domain spectroscopy and numerically by the finite element method. |
| doi_str_mv | 10.1109/TTHZ.2011.2159547 |
| format | Article |
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The impact of the mode profile on losses and dispersion at THz frequencies is confirmed experimentally by THz near-field imaging and THz time-domain spectroscopy and numerically by the finite element method.</description><subject>Coatings</subject><subject>Dielectrics</subject><subject>Dispersion</subject><subject>Hollow waveguides</subject><subject>near-field microscopy</subject><subject>Optical waveguides</subject><subject>Propagation losses</subject><subject>terahertz waveguides</subject><subject>THz spectroscopy</subject><subject>transmission loss</subject><subject>waveguide modes</subject><issn>2156-342X</issn><issn>2156-3446</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9j91Kw0AQhRdRsNQ-gHizL5C4_7u5lKJGCAgSUbxZ9i9lJU0kaxV9-m5o6dycAzNnOB8A1xiVGKPqtm3rj5IgjEuCecWZPAOL7ERBGRPnJ0_eL8EqpU-UhwuqJFsA_hL8zsVhA9vJDGkbU4rjAJsxpZBgHGA99v34C9v6H76Zn7DZRR_SFbjoTJ_C6qhL8Ppw367ronl-fFrfNYWjSH0X1hIumDEqIE6DV4Iy5YxHopKsq4iTomOIBlRZ2VHCcV5YrJjn0jtrlaVLgA9_3ZQLTaHTX1PcmulPY6RndD2j6xldH9Fz5uaQiSGE073IyJRKugfO2FRr</recordid><startdate>201109</startdate><enddate>201109</enddate><creator>Mitrofanov, O.</creator><creator>James, R.</creator><creator>Fernandez, F. 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A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reducing Transmission Losses in Hollow THz Waveguides</atitle><jtitle>IEEE transactions on terahertz science and technology</jtitle><stitle>TTHZ</stitle><date>2011-09</date><risdate>2011</risdate><volume>1</volume><issue>1</issue><spage>124</spage><epage>132</epage><pages>124-132</pages><issn>2156-342X</issn><eissn>2156-3446</eissn><coden>ITTSBX</coden><abstract>Research on reducing material absorption in Terahertz (THz) waveguides has lead to development of guiding structures with transmission losses as low as 1 dB/m. Among waveguides that exhibit low loss at THz frequencies are the dielectric-lined hollow cylindrical metallic waveguides. Loss reduction in this waveguide is attributed to an ideal profile of the dominant hybrid HE 11 mode. This mode profile also results in relatively low dispersion and very high coupling efficiency. 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| subjects | Coatings Dielectrics Dispersion Hollow waveguides near-field microscopy Optical waveguides Propagation losses terahertz waveguides THz spectroscopy transmission loss waveguide modes |
| title | Reducing Transmission Losses in Hollow THz Waveguides |
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