Compact terahertz driven electron and x-ray sources

Franz X. Kärtner; Dongfang Zhang; Michael Hemmer; Moen Fakhari; Yi Hua; Huseyin Cankaya; Anne-Laure Calendron; Xiaojun Wu; Luis E. Zapata; Nicholas H. Matlis

doi:10.1117/12.2563450

2 March 2020 Compact terahertz driven electron and x-ray sources

Franz X. Kärtner, Dongfang Zhang, Michael Hemmer, Moen Fakhari, Yi Hua, Huseyin Cankaya, Anne-Laure Calendron, Xiaojun Wu, Luis E. Zapata, Nicholas H. Matlis

Author Affiliations +

Proceedings Volume 11270, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XX; 1127002 (2020) https://doi.org/10.1117/12.2563450
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

The generation and use of THz radiation for electron acceleration and manipulation of electron bunches has progressed over the last decade to a level where practical devices for THz guns, acceleration and a wide range of beam manipulations have become possible. Here, we present our progress on generation of single-cycle THz pulses at the two-hundred micro- Joule level to drive advanced acceleration and beam manipulation devices. Specifically, we use pulses centered at 0.3 THz to power a segmented terahertz electron accelerator and manipulator (STEAM) capable of performing multiple high-field operations on the 6D-phase-space of ultrashort electron bunches. Using this STEAM device, we demonstrate record THzacceleration of >60 keV, streaking with <10 fs resolution, focusing with >2 kT/m strength, compression to ~100 fs as well as real-time switching between these modes of operation. The STEAM device demonstrates the feasibility of THz-based electron accelerators, manipulators and diagnostic tools enabling science beyond current resolution frontiers with transformative impact.

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Franz X. Kärtner, Dongfang Zhang, Michael Hemmer, Moen Fakhari, Yi Hua, Huseyin Cankaya, Anne-Laure Calendron, Xiaojun Wu, Luis E. Zapata, and Nicholas H. Matlis "Compact terahertz driven electron and x-ray sources", Proc. SPIE 11270, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XX, 1127002 (2 March 2020); https://doi.org/10.1117/12.2563450

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KEYWORDS

Terahertz radiation

Magnetism

Waveguides

Electron beams

Metals

Imaging spectroscopy

Control systems

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