Free-electron-driven orbital angular momentum emitter

Juan-Feng Zhu; Chao-Hai Du; Zi-Wen Zhang; Fan-Hong Li; Pu-Kun Liu; Adrian W. Cross; Liang Zhang

doi:10.1109/UCMMT49983.2020.9296116

Free-electron-driven orbital angular momentum emitter

Juan-Feng Zhu, Chao-Hai Du^*, Zi-Wen Zhang, Fan-Hong Li, Pu-Kun Liu, Adrian W. Cross, Liang Zhang

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

2 Citations (Scopus)

19 Downloads (Pure)

Abstract

A free-electron-driven orbital angular momentum (OAM) emitter is introduced in this paper. When the free electron passes over the cylindrical grating, the spoof surface plasmon (SSP) is stimulated in this system. With loading a helical wire which induces a gradient azimuthal phase distribution the system, the SSP mode will be converted into the spatial OAM radiation. The operating frequency of the OAM mode can be tuned by the electron beam energy of the surface plasmon. Compared with the Smith-Purcell radiation from the helical grating, the field intensity is enhanced by about 50 times. This method provides an efficient way to generate the OAM mode, and may find applications in a communication system.

Original language	English
Title of host publication	2020 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020
Place of Publication	New York
Number of pages	3
ISBN (Electronic)	9781728190648
DOIs	https://doi.org/10.1109/UCMMT49983.2020.9296116
Publication status	Published - 30 Dec 2020
Event	13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020 - Virtual, Tianjin, China Duration: 29 Aug 2020 → 1 Sept 2020

Publication series

Name	2020 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020
Publisher	IEEE
ISSN (Print)	2639-4545
ISSN (Electronic)	2639-4537

Conference

Conference	13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020
Country/Territory	China
City	Virtual, Tianjin
Period	29/08/20 → 1/09/20

Funding

This work was supported in part by the National Natural Science Foundation of China under contracts 61861130367, 61531002, NSAF-U1830201, and 61971013. It was also supported in part by the Newton Advanced Fellowship from Royal Society (NAF/R1/180121), United Kingdom.

Keywords

free-electron-driven orbital angular momentum emitter (OAM)
spoof surface plasmon (SSP)

Access to Document

10.1109/UCMMT49983.2020.9296116

Zhu-etal-UCMMT-2020-Free-electron-driven-orbital-angular-momentum-emitterAccepted author manuscript, 424 KB

Cite this

Zhu, J.-F., Du, C.-H., Zhang, Z.-W., Li, F.-H., Liu, P.-K., Cross, A. W., & Zhang, L. (2020). Free-electron-driven orbital angular momentum emitter. In 2020 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020 Article 9296116 (2020 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020).. https://doi.org/10.1109/UCMMT49983.2020.9296116

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abstract = "A free-electron-driven orbital angular momentum (OAM) emitter is introduced in this paper. When the free electron passes over the cylindrical grating, the spoof surface plasmon (SSP) is stimulated in this system. With loading a helical wire which induces a gradient azimuthal phase distribution the system, the SSP mode will be converted into the spatial OAM radiation. The operating frequency of the OAM mode can be tuned by the electron beam energy of the surface plasmon. Compared with the Smith-Purcell radiation from the helical grating, the field intensity is enhanced by about 50 times. This method provides an efficient way to generate the OAM mode, and may find applications in a communication system.",

keywords = "free-electron-driven orbital angular momentum emitter (OAM), spoof surface plasmon (SSP)",

author = "Juan-Feng Zhu and Chao-Hai Du and Zi-Wen Zhang and Fan-Hong Li and Pu-Kun Liu and Cross, {Adrian W.} and Liang Zhang",

note = "{\textcopyright} 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.; 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020 ; Conference date: 29-08-2020 Through 01-09-2020",

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doi = "10.1109/UCMMT49983.2020.9296116",

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Zhu, J-F, Du, C-H, Zhang, Z-W, Li, F-H, Liu, P-K, Cross, AW & Zhang, L 2020, Free-electron-driven orbital angular momentum emitter. in 2020 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020., 9296116, 2020 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020, New York, 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020, Virtual, Tianjin, China, 29/08/20. https://doi.org/10.1109/UCMMT49983.2020.9296116

Free-electron-driven orbital angular momentum emitter. / Zhu, Juan-Feng; Du, Chao-Hai; Zhang, Zi-Wen et al.
2020 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020. New York, 2020. 9296116 (2020 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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AU - Zhang, Zi-Wen

AU - Li, Fan-Hong

AU - Liu, Pu-Kun

AU - Cross, Adrian W.

AU - Zhang, Liang

N1 - © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2020/12/30

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N2 - A free-electron-driven orbital angular momentum (OAM) emitter is introduced in this paper. When the free electron passes over the cylindrical grating, the spoof surface plasmon (SSP) is stimulated in this system. With loading a helical wire which induces a gradient azimuthal phase distribution the system, the SSP mode will be converted into the spatial OAM radiation. The operating frequency of the OAM mode can be tuned by the electron beam energy of the surface plasmon. Compared with the Smith-Purcell radiation from the helical grating, the field intensity is enhanced by about 50 times. This method provides an efficient way to generate the OAM mode, and may find applications in a communication system.

AB - A free-electron-driven orbital angular momentum (OAM) emitter is introduced in this paper. When the free electron passes over the cylindrical grating, the spoof surface plasmon (SSP) is stimulated in this system. With loading a helical wire which induces a gradient azimuthal phase distribution the system, the SSP mode will be converted into the spatial OAM radiation. The operating frequency of the OAM mode can be tuned by the electron beam energy of the surface plasmon. Compared with the Smith-Purcell radiation from the helical grating, the field intensity is enhanced by about 50 times. This method provides an efficient way to generate the OAM mode, and may find applications in a communication system.

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Y2 - 29 August 2020 through 1 September 2020

ER -

Zhu JF, Du CH, Zhang ZW, Li FH, Liu PK, Cross AW et al. Free-electron-driven orbital angular momentum emitter. In 2020 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020. New York. 2020. 9296116. (2020 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies, UCMMT 2020). Epub 2020 Sept 1. doi: 10.1109/UCMMT49983.2020.9296116

Free-electron-driven orbital angular momentum emitter

Abstract

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Terahertz High-Harmonic Gyrotron Oscillator By Using Metasurface Cylindrical Cavity (Newton Advanced Fellowship - Prof Chao-Hai Du)

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Free-electron-driven orbital angular momentum emitter

Abstract

Publication series

Conference

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Terahertz High-Harmonic Gyrotron Oscillator By Using Metasurface Cylindrical Cavity (Newton Advanced Fellowship - Prof Chao-Hai Du)

Cite this