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TY - CONF AU - Mai, C. AU - Bahnsen, F.H. AU - Bolsinger, M. AU - Brosi, M. AU - Hilbrich, S. AU - Huck, H. AU - Huck, M. AU - Höner, M. AU - Kehrer, B. AU - Khan, S. AU - Meyer auf der Heide, A. AU - Molo, R. AU - Müller, A.-S. AU - Nasse, M.J. AU - Rast, H. AU - Schönfeldt, P. AU - Schütze, P. AU - Shayeganrad, G. AU - Ungelenk, P. AU - Walther, S. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Observation of Coherent Pulses in the Sub-THz Range at DELTA J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - Coherent ultrashort THz pulses induced by a laser-electron interaction are routinely produced and observed at DELTA, a 1.5-GeV synchrotron light source operated by the TU Dortmund University. The turn-by-turn evolution of the radiation spectrum is known to shift to the sub-THz regime after the initial laser-electron interaction. Recently, an ultrafast YBCO-based THz detector has been permanently installed and a Schottky diode has been tested at the THz beamline. Measurements with these detectors showing the temporal evolution of the coherent signals after several revolutions are presented. Furthermore, the concept of a recently designed Fourier-transform spectrometer optimized for the sub-THz region is shown. PB - JACoW CP - Geneva, Switzerland SP - 823 EP - 826 KW - electron KW - radiation KW - detector KW - laser KW - synchrotron DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-MOPHA023 UR - http://jacow.org/ipac2015/papers/mopha023.pdf ER -