Published in
Nature Research, Scientific Reports, 1(6), 2016
DOI: 10.1038/srep22256
Links
- ORCID
- ORCID
- ORCID
- ORCID
- Nature Research | PDF
- [edocs.fu-berlin.de] | PDF
- [www.researchgate.net]
- [www.ncbi.nlm.nih.gov] | PDF
- [europepmc.org] | PDF
- [publikationen.bibliothek.kit.edu] | PDF
- [bib-pubdb1.desy.de] | PDF
Tools
High-Field High-Repetition-Rate Sources for the Coherent THz Control of Matter
,
S. Kovalev,
V. Asgekar,
G. Geloni,
U. Lehnert,
T. Golz,
M. Kuntzsch,
C. Bauer,
J. Hauser,
J. Voigtlaender,
B. Wustmann,
I. Koesterke,
M. Schwarz,
M. Freitag,
A. Arnold
and other authors.
Full text: Download
Abstract
AbstractUltrashort flashes of THz light with low photon energies of a few meV, but strong electric or magnetic field transients have recently been employed to prepare various fascinating nonequilibrium states in matter. Here we present a new class of sources based on superradiant enhancement of radiation from relativistic electron bunches in a compact electron accelerator that we believe will revolutionize experiments in this field. Our prototype source generates high-field THz pulses at unprecedented quasi-continuous-wave repetition rates up to the MHz regime. We demonstrate parameters that exceed state-of-the-art laser-based sources by more than 2 orders of magnitude. The peak fields and the repetition rates are highly scalable and once fully operational this type of sources will routinely provide 1 MV/cm electric fields and 0.3 T magnetic fields at repetition rates of few 100 kHz. We benchmark the unique properties by performing a resonant coherent THz control experiment with few 10 fs resolution.