Photonic Crystal-Based High-Power Backward Wave Oscillator
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:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Air Force Research Lab., Albuquerque, NM (United States)
- Publication Date:
- 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.
Poole, Brian R., & Harris, John R.. Photonic Crystal-Based High-Power Backward Wave Oscillator. United States. https://doi.org/10.1109/TPS.2017.2774271
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.
@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 = {2017},
month = {12}
}
Web of Science