Electron beam excitation of coherent sub-terahertz radiation in periodic structures manufactured by 3D printing

Phipps, A. R. and MacLachlan, A. J. and Robertson, C. W. and Zhang, L. and Konoplev, I. V. and Cross, A. W. and Phelps, A. D. R. (2017) Electron beam excitation of coherent sub-terahertz radiation in periodic structures manufactured by 3D printing. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 402. pp. 202-205. ISSN 0168-583X (https://doi.org/10.1016/j.nimb.2017.03.093)

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Abstract

For the creation of novel coherent sub-THz sources excited by electron beams there is a requirement to manufacture intricate periodic structures to produce and radiate electromagnetic fields. The specification and the measured performance is reported of a periodic structure constructed by additive manufacturing and used successfully in an electron beam driven sub-THz radiation source. Additive manufacturing, or “3D printing”, is promising to be quick and cost-effective for prototyping these periodic structures.