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Summary
This summary is machine-generated.

Modern X-ray free-electron lasers can generate intense terahertz (THz) transients using superconducting THz undulators. This advancement enables new research, including X-ray movies of THz-driven chemistry.

Keywords:
X-ray free-electron lasersuperradiant emissionterahertz controlterahertz radiationultrafast phenomena

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Area of Science:

  • Physics
  • Chemistry
  • Materials Science

Background:

  • Electron linear accelerators are crucial for modern X-ray free-electron lasers (XFELs).
  • Terahertz (THz) transients offer unique properties for scientific investigation.

Purpose of the Study:

  • To investigate the generation of intense THz transients using XFEL infrastructure.
  • To explore new research possibilities enabled by these THz transients.

Main Methods:

  • Implementation of a compact, superconducting THz undulator.
  • Utilizing ultra-short GeV electron bunches from the linear accelerator.

Main Results:

  • Generation of intense, tunable, quasi-monochromatic THz transients.
  • Achieved peak electric fields of V Å -1 and peak magnetic fields >10 T.
  • Demonstrated dual use of electron bunches for THz generation and XFEL operation.

Conclusions:

  • A superconducting THz undulator enhances XFEL capabilities for THz emission.
  • This technology opens avenues for advanced research, such as observing THz-driven chemical dynamics.
  • Minor infrastructure extensions can unlock significant scientific potential.