Overmoded, high-power 0.2 THz radiation source based on a cylindrical 2D Periodic Surface Lattice cavity

MacLachlan, Amy J. and Robertson, Craig W. and Cross, Adrian W. and Ronald, Kevin and Phelps, Alan D. R. (2020) Overmoded, high-power 0.2 THz radiation source based on a cylindrical 2D Periodic Surface Lattice cavity. In: 47th IEEE International Conference on Plasma Science, 2020-12-06 - 2020-12-10, Virtual.

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Abstract

We present the theoretical and numerical study of a cylindrical two-dimensional periodic surface lattice (2D PSL) overmoded interaction cavity, excited by a thin, annular electron beam, immersed in a magnetic field. This high-power 0.2 THz radiation source with applications in plasma diagnostics, imaging, spectroscopy, radar, and communications is designed and simulated using the PIC solver of CST Microwave Studio. The amplitude of the corrugation is sufficiently small that the 2D PSL can be described as an effective metadielectric1. Coupling of volume and surface modes occurs2-6 when optimum parameters and dimensions are chosen. The energy of the electron beam and the periodicities of the PSL are chosen for effective electron beam coupling. We demonstrate the production of well-defined, high-power 0.2 THz radiation.

ORCID iDs

MacLachlan, Amy J. ORCID logoORCID: https://orcid.org/0000-0002-8960-1683, Robertson, Craig W. ORCID logoORCID: https://orcid.org/0000-0002-3552-466X, Cross, Adrian W. ORCID logoORCID: https://orcid.org/0000-0001-7672-1283, Ronald, Kevin ORCID logoORCID: https://orcid.org/0000-0002-8585-0746 and Phelps, Alan D. R. ORCID logoORCID: https://orcid.org/0000-0002-1100-1012;
  • Item type:Conference or Workshop Item(Other)
    ID code:76682
    Dates:
    Date
    Event
    7 December 2020
    Published
    1 November 2020
    Accepted
    Notes:© 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.
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:04 Jun 2021 15:26
    Last modified:11 Nov 2024 17:03
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/76682
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