Fundamentals for a terahertz-driven electron gun

Simon Lehnskov Lange, Filip D. Olsen, Krzysztof Iwaszczuk, Peter Uhd Jepsen

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Abstract

We present simulations showing how metallic dipole structures can be used as a fundamental platform for electron field emission (EFE) enabled by a strong terahertz (THz) transient. We present space-time mapping of the ultrafast dynamics of EFE with an approximately free-standing dipole versus two dipoles placed with a small gap in between. We conclude that it is possible to make ultra-bright electron bunches shorter than 1 ps and accelerate them to the low keV range over 15 mu m using only a single THz transient. Our results are fundamental to understand and build a THz-driven electron gun.
Original languageEnglish
Title of host publicationProceedings of 2017 17th International Conference on Numerical Simulation of Optoelectronic Devices
PublisherIEEE
Publication date2017
Pages197-198
ISBN (Print)9781509053230
DOIs
Publication statusPublished - 2017
Event17th International Conference on Numerical Simulation of Optoelectronic Devices - Technical University of Denmark, Lyngby, Denmark
Duration: 24 Jul 201728 Jul 2017
Conference number: 17

Conference

Conference17th International Conference on Numerical Simulation of Optoelectronic Devices
Number17
LocationTechnical University of Denmark
CountryDenmark
CityLyngby
Period24/07/201728/07/2017

Keywords

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Cite this

Lange, S. L., Olsen, F. D., Iwaszczuk, K., & Jepsen, P. U. (2017). Fundamentals for a terahertz-driven electron gun. In Proceedings of 2017 17th International Conference on Numerical Simulation of Optoelectronic Devices (pp. 197-198). IEEE. https://doi.org/10.1109/NUSOD.2017.8010059