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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Autores principales:	Ashwini Sawant, Mun Seok Choe, Manfred Thumm, EunMi Choi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a0e12ff73a9c4be6a4cd5b9cefaa3b0a
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spelling	oai:doaj.org-article:a0e12ff73a9c4be6a4cd5b9cefaa3b0a2021-12-02T15:06:02ZOrbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers10.1038/s41598-017-03533-y2045-2322https://doaj.org/article/a0e12ff73a9c4be6a4cd5b9cefaa3b0a2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03533-yhttps://doaj.org/toc/2045-2322Abstract 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.Ashwini SawantMun Seok ChoeManfred ThummEunMi ChoiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ashwini Sawant Mun Seok Choe Manfred Thumm EunMi Choi Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers
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.
format	article
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
title	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_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_sort	orbital angular momentum (oam) of rotating modes driven by electrons in electron cyclotron masers
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/a0e12ff73a9c4be6a4cd5b9cefaa3b0a
work_keys_str_mv	AT ashwinisawant orbitalangularmomentumoamofrotatingmodesdrivenbyelectronsinelectroncyclotronmasers AT munseokchoe orbitalangularmomentumoamofrotatingmodesdrivenbyelectronsinelectroncyclotronmasers AT manfredthumm orbitalangularmomentumoamofrotatingmodesdrivenbyelectronsinelectroncyclotronmasers AT eunmichoi orbitalangularmomentumoamofrotatingmodesdrivenbyelectronsinelectroncyclotronmasers
_version_	1718388601002131456

Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers

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