Photonic Crystal-Based High-Power Backward Wave Oscillator

Poole, Brian R.; Harris, John R.

doi:10.1109/TPS.2017.2774271

Title: Photonic Crystal-Based High-Power Backward Wave Oscillator

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Abstract

An electron beam traversing a slow wave structure can be used to either generate or amplify electromagnetic radiation through the interaction of the slow space charge wave on the beam with the slow wave structure modes. Here, a cylindrical waveguide with a periodic array of conducting loops is used for the slow wave structure. This paper considers operation as a backward wave oscillator. The dispersion properties of the structure are determined using a frequency-domain eigenmode solver. The interaction of the electron beam with the structure modes is investigated using a 2-D particle-in-cell (PIC) code. In conclusion, the operating frequency and growth rate dependence on beam energy and beam current are investigated using the PIC code and compared with analytic and scaling estimates where possible.

Authors:

^[1];

^[2]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Air Force Research Lab., Albuquerque, NM (United States)

Publication Date:: Fri Dec 01 00:00:00 EST 2017

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1416512

Report Number(s):: LLNL-JRNL-730755
Journal ID: ISSN 0093-3813; TRN: US1800948

Grant/Contract Number:: AC52-07NA27344

Resource Type:: Accepted Manuscript

Journal Name:: IEEE Transactions on Plasma Science

Additional Journal Information:: Journal Volume: 46; Journal Issue: 1; Journal ID: ISSN 0093-3813

Publisher:: IEEE

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION; 42 ENGINEERING; Backward wave oscillators (BWOs); electron beams; periodic structures

Citation Formats


                    Poole, Brian R., and Harris, John R. Photonic Crystal-Based High-Power Backward Wave Oscillator.  United States: N. p., 2017. 
Web.  doi:10.1109/TPS.2017.2774271.

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                    Poole, Brian R., & Harris, John R. Photonic Crystal-Based High-Power Backward Wave Oscillator.  United States.  https://doi.org/10.1109/TPS.2017.2774271

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                    Poole, Brian R., and Harris, John R. Fri .  
"Photonic Crystal-Based High-Power Backward Wave Oscillator".  United States.  https://doi.org/10.1109/TPS.2017.2774271.  https://www.osti.gov/servlets/purl/1416512.

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@article{osti_1416512,

  title        = {Photonic Crystal-Based High-Power Backward Wave Oscillator},

  author       = {Poole, Brian R. and Harris, John R.},

  abstractNote = {An electron beam traversing a slow wave structure can be used to either generate or amplify electromagnetic radiation through the interaction of the slow space charge wave on the beam with the slow wave structure modes. Here, a cylindrical waveguide with a periodic array of conducting loops is used for the slow wave structure. This paper considers operation as a backward wave oscillator. The dispersion properties of the structure are determined using a frequency-domain eigenmode solver. The interaction of the electron beam with the structure modes is investigated using a 2-D particle-in-cell (PIC) code. In conclusion, the operating frequency and growth rate dependence on beam energy and beam current are investigated using the PIC code and compared with analytic and scaling estimates where possible.},

  doi          = {10.1109/TPS.2017.2774271},

  journal      = {IEEE Transactions on Plasma Science},

  number       = 1,

  volume       = 46,

  place        = {United States},

  year         = {Fri Dec 01 00:00:00 EST 2017},

  month        = {Fri Dec 01 00:00:00 EST 2017}

}

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