| Presentation | 2023-01-24 Design of terahertz vortex component made with polarization-independent metasurface with high refractive index and low reflectance Shunji Yamamori, Kohei Urashima, Takehito Suzuki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Multiplexing terahertz vortices with different topological charges would be a welcome contribution to enable high-capacity, ultra-high-speed wireless communications, including 6G communications. However, terahertz vortex components suitable for integration with terahertz continuous-wave (CW) sources are necessary to offer accessible devices in the terahertz waveband. In this report, we present measurements of two-dimensional intensity distribution maps for collimated terahertz waves radiated from a single RTD oscillating at 0.312 THz by a metalens antenna. We also present the design of a terahertz vortex component that converts plane waves to terahertz vortices in the 0.3-THz band consisting of 4-layer laminated polarization-independent metasurfaces with high refractive indices and low reflectance and verify terahertz vortices by simulations. We will measure the fabricated terahertz vortex component by the prepared experimental system. The designed terahertz vortex component with polarization-independent could be mounted on terahertz wave CW sources without angle adjustment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Terahertz wave / Vortex / Metasurface / Metalens antenna |
| Paper # | PN2022-41,EMT2022-79,MWPTHz2022-67 |
| Date of Issue | 2023-01-16 (PN, EMT, MWPTHz) |
| Conference Information | |
| Committee | MWPTHz / PN / EMT / IEE-EMT |
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| Conference Date | 2023/1/23(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Atsushi Kanno(NICT) / Hideaki Furukawa(NICT) / Hiroyuki Deguchi(Doshisha Univ.) / Shinichi Furukawa(Nihon University) |
| Vice Chair | Masayuki Fujita(Osaka Univ.) / Kensuke Ikeda(CRIEPI) / Kohei Shiomoto(Tokyo City Univ.) / Ryuichi Sugizaki(Furukawa Electric) / Noboru Yoshikane(KDDI Research) / Hideki Kawaguchi(Muroran Inst. of Tech) |
| Secretary | Masayuki Fujita(NICT) / Kensuke Ikeda(NICT) / Kohei Shiomoto(NTT) / Ryuichi Sugizaki(Univ. of Electr-Comm.) / Noboru Yoshikane(Mitsubishi Electric) / Hideki Kawaguchi(Kyushu Sangyo Univ.) / (Tokyo Metropolitan Univ.) |
| Assistant | Li Yi(Osaka Univ.) / Akira Satou(Tohoku Univ.) / Safumi Suzuki(Tokyo Inst. of Tech.) / Kenji Ishii(Mitsubishi Electric) / Yojiro Mori(Nagoya Univ.) / Ryo Natsuaki(Univ. of Tokyo) / Kazuki Niino(Kyoto Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Microwave Photonics and Terahertz Photonic-Electronic Technologies / Technical Committee on Photonic Network / Technical Committee on Electromagnetic Theory / Technical Meeting on Electromagnetic Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of terahertz vortex component made with polarization-independent metasurface with high refractive index and low reflectance |
| Sub Title (in English) | |
| Keyword(1) | Terahertz wave |
| Keyword(2) | Vortex |
| Keyword(3) | Metasurface |
| Keyword(4) | Metalens antenna |
| 1st Author's Name | Shunji Yamamori |
| 1st Author's Affiliation | Tokyo University of Agriculture and Technology(TUAT) |
| 2nd Author's Name | Kohei Urashima |
| 2nd Author's Affiliation | Tokyo University of Agriculture and Technology(TUAT) |
| 3rd Author's Name | Takehito Suzuki |
| 3rd Author's Affiliation | Tokyo University of Agriculture and Technology(TUAT) |
| Date | 2023-01-24 |
| Paper # | PN2022-41,EMT2022-79,MWPTHz2022-67 |
| Volume (vol) | vol.122 |
| Number (no) | PN-350,EMT-351,MWPTHz-352 |
| Page | pp.pp.53-58(PN), pp.53-58(EMT), pp.53-58(MWPTHz), |
| #Pages | 6 |
| Date of Issue | 2023-01-16 (PN, EMT, MWPTHz) |