[{"type":"article-journal","title":"High-field high-repetition-rate sources for the coherent THz control of matter","issued":{"date-parts":[["2016"]]},"volume":"6","page":"Art.Nr.: 22256","container-title":"Scientific reports","DOI":"10.1038\/srep22256","author":[{"family":"Green","given":"B."},{"family":"Kovalev","given":"S."},{"family":"Asgekar","given":"V."},{"family":"Geloni","given":"G."},{"family":"Lehnert","given":"U."},{"family":"Golz","given":"T."},{"family":"Kuntzsch","given":"M."},{"family":"Bauer","given":"C."},{"family":"Hauser","given":"J."},{"family":"Voigtlaender","given":"J."},{"family":"Wustmann","given":"B."},{"family":"Koesterke","given":"I."},{"family":"Schwarz","given":"M."},{"family":"Freitag","given":"M."},{"family":"Arnold","given":"A."},{"family":"Teichert","given":"J."},{"family":"Justus","given":"M."},{"family":"Seidel","given":"W."},{"family":"Ilgner","given":"C."},{"family":"Awari","given":"N."},{"family":"Nicoletti","given":"D."},{"family":"Kaiser","given":"S."},{"family":"Laplace","given":"Y."},{"family":"Rajasekaran","given":"S."},{"family":"Zhang","given":"L."},{"family":"Winnerl","given":"S."},{"family":"Schneider","given":"H."},{"family":"Schay","given":"G."},{"family":"Lorincz","given":"I."},{"family":"Rauscher","given":"A. A."},{"family":"Radu","given":"I."},{"family":"M\u00e4hrlein","given":"S."},{"family":"Kim","given":"T. H."},{"family":"Lee","given":"J. S."},{"family":"Kampfrath","given":"T."},{"family":"Wall","given":"S."},{"family":"Heberle","given":"J."},{"family":"Malnasi-Csizmadia","given":"A."},{"family":"Steiger","given":"A. l"},{"family":"M\u00f6ller","given":"A. S."},{"family":"Helm","given":"M."},{"family":"Schramm","given":"U."},{"family":"Cowan","given":"T."},{"family":"Michel","given":"P."},{"family":"Cavalleri","given":"A."},{"family":"Fisher","given":"A. S."},{"family":"Stojanovic","given":"N."},{"family":"Gensch","given":"M."}],"ISSN":"2045-2322","abstract":"Ultrashort 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 quasicontinuous-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.","kit-publication-id":"1000064252"}]