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 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.
| Zugehörige Institution(en) am KIT | Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM) |
| Publikationstyp | Zeitschriftenaufsatz |
| Publikationsjahr | 2017 |
| Sprache | Englisch |
| Identifikator | ISSN: 2045-2322 urn:nbn:de:swb:90-717900 KITopen-ID: 1000071790 |
| HGF-Programm | 31.03.02 (POF III, LK 01) Plasma Heizsysteme |
| Erschienen in | Scientific reports |
| Verlag | Nature Research |
| Band | 7 |
| Heft | 1 |
| Seiten | Art. Nr. 3372 |
| Nachgewiesen in | Web of Science Scopus OpenAlex Dimensions |
| Globale Ziele für nachhaltige Entwicklung |