Segmented Terahertz Electron Accelerator and Manipulator (STEAM)
| Autor: | Zhang, Dongfang, Fallahi, Arya, Hemmer, Michael, Wu, Xiaojun, Fakhari, Moein, Hua, Yi, Cankaya, Huseyin, Calendron, Anne-Laure, Zapata, Luis E., Matlis, Nicholas H., Kärtner, Franz X. |
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| Rok vydání: | 2017 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1038/s41566-018-0138-z |
| Popis: | Acceleration and manipulation of ultrashort electron bunches are the basis behind electron and X-ray devices used for ultrafast, atomic-scale imaging and spectroscopy. Using laser-generated THz drivers enables intrinsic synchronization as well as dramatic gains in field strengths, field gradients and component compactness, leading to shorter electron bunches, higher spatio-temporal resolution and smaller infrastructures. We present a segmented THz electron accelerator and manipulator (STEAM) with extended interaction lengths capable of performing multiple high-field operations on the energy and phase-space of ultrashort bunches with moderate charge. With this single device, powered by few-microjoule, single-cycle, 0.3 THz pulses, we demonstrate record THz-device acceleration of >30 keV, streaking with <10 fs resolution, focusing with >2 kT/m strengths, compression to ~100 fs as well as real-time switching between these modes of operation. The STEAM device demonstrates the feasibility of future THz-based compact electron guns, accelerators, ultrafast electron diffractometers and Free-Electron Lasers with transformative impact. Comment: 14 pages, 6 figures |
| Databáze: | arXiv |
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