Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers
Abstract The well-defined orbital angular momentum (OAM) of rotating cavity modes operating near the cutoff frequency excited by gyrating electrons in a high-power electron cyclotron maser (ECM)—a gyrotron—has been derived by photonic and electromagnetic wave approaches. A mode generator was built w...
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| פורמט: | Article |
| שפה: | English |
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Nature Portfolio
2017-06-01
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| סדרה: | Scientific Reports |
| גישה מקוונת: | https://doi.org/10.1038/s41598-017-03533-y |
| _version_ | 1831827098469138432 |
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| author | Ashwini Sawant Mun Seok Choe Manfred Thumm EunMi Choi |
| author_facet | Ashwini Sawant Mun Seok Choe Manfred Thumm EunMi Choi |
| author_sort | Ashwini Sawant |
| collection | DOAJ |
| description | Abstract The well-defined orbital angular momentum (OAM) of rotating cavity modes operating near the cutoff frequency excited by gyrating electrons in a high-power electron cyclotron maser (ECM)—a gyrotron—has been derived by photonic and electromagnetic wave approaches. A mode generator was built with a high-precision 3D printing technique to mimic the rotating gyrotron modes for precise low-power measurements and shows clear natural production of higher-order OAM modes. Cold-test measurements of higher-order OAM mode generation promise the realization towards wireless long-range communications using high-power ECMs. |
| first_indexed | 2024-12-23T01:53:28Z |
| format | Article |
| id | doaj.art-a0e12ff73a9c4be6a4cd5b9cefaa3b0a |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-23T01:53:28Z |
| publishDate | 2017-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-a0e12ff73a9c4be6a4cd5b9cefaa3b0a2022-12-21T18:04:10ZengNature PortfolioScientific Reports2045-23222017-06-017111010.1038/s41598-017-03533-yOrbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron MasersAshwini Sawant0Mun Seok Choe1Manfred Thumm2EunMi Choi3Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST)Department of Physics, Ulsan National Institute of Science and Technology (UNIST)Institute for Pulsed Power and Microwave Technology (IHM), Karlsruhe Institute of Technology (KIT)Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST)Abstract The well-defined orbital angular momentum (OAM) of rotating cavity modes operating near the cutoff frequency excited by gyrating electrons in a high-power electron cyclotron maser (ECM)—a gyrotron—has been derived by photonic and electromagnetic wave approaches. A mode generator was built with a high-precision 3D printing technique to mimic the rotating gyrotron modes for precise low-power measurements and shows clear natural production of higher-order OAM modes. Cold-test measurements of higher-order OAM mode generation promise the realization towards wireless long-range communications using high-power ECMs.https://doi.org/10.1038/s41598-017-03533-y |
| spellingShingle | Ashwini Sawant Mun Seok Choe Manfred Thumm EunMi Choi Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers Scientific Reports |
| title | Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers |
| title_full | Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers |
| title_fullStr | Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers |
| title_full_unstemmed | Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers |
| title_short | Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers |
| title_sort | orbital angular momentum oam of rotating modes driven by electrons in electron cyclotron masers |
| url | https://doi.org/10.1038/s41598-017-03533-y |
| work_keys_str_mv | AT ashwinisawant orbitalangularmomentumoamofrotatingmodesdrivenbyelectronsinelectroncyclotronmasers AT munseokchoe orbitalangularmomentumoamofrotatingmodesdrivenbyelectronsinelectroncyclotronmasers AT manfredthumm orbitalangularmomentumoamofrotatingmodesdrivenbyelectronsinelectroncyclotronmasers AT eunmichoi orbitalangularmomentumoamofrotatingmodesdrivenbyelectronsinelectroncyclotronmasers |