Millijoule few-cycle 5 μm source at 1 kHz repetition rate for generating broadband pulses from the mid- to far-infraredGiulia Folpini, Klaus Reimann, Michael Woerner, Lorenz von Grafenstein, Martin Bock, Uwe Griebner and Thomas ElsaesserEPJ Web Conf., 205 (2019) 01014DOI: https://doi.org/10.1051/epjconf/201920501014