Fundamentals for a terahertz-driven electron gun

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

doi:10.1109/NUSOD.2017.8010059

Fundamentals for a terahertz-driven electron gun

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

Technical University of Denmark

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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 language	English
Title of host publication	Proceedings of 2017 17th International Conference on Numerical Simulation of Optoelectronic Devices
Publisher	IEEE
Publication date	2017
Pages	197-198
ISBN (Print)	9781509053230
DOIs	https://doi.org/10.1109/NUSOD.2017.8010059
Publication status	Published - 2017
Event	17th International Conference on Numerical Simulation of Optoelectronic Devices - Technical University of Denmark, Lyngby, Denmark Duration: 24 Jul 2017 → 28 Jul 2017 Conference number: 17

Conference

Conference	17th International Conference on Numerical Simulation of Optoelectronic Devices
Number	17
Location	Technical University of Denmark
Country/Territory	Denmark
City	Lyngby
Period	24/07/2017 → 28/07/2017

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10.1109/NUSOD.2017.8010059

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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.",

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Lange, SL, Olsen, FD, Iwaszczuk, K & Jepsen, PU 2017, Fundamentals for a terahertz-driven electron gun. in Proceedings of 2017 17th International Conference on Numerical Simulation of Optoelectronic Devices . IEEE, pp. 197-198, 17th International Conference on Numerical Simulation of Optoelectronic Devices, Lyngby, Denmark, 24/07/2017. https://doi.org/10.1109/NUSOD.2017.8010059

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AU - Jepsen, Peter Uhd

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Fundamentals for a terahertz-driven electron gun

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