TY - JOUR AU - Hernández García, Carlos AU - Pérez-Hernández, José Antonio AU - Popmintchev, T. AU - Murnane, Margaret M. AU - Kapteyn, Henry C. AU - Jaron-Becker, Agnieszka AU - Becker, Andreas AU - Plaja Rustein, Luis PY - 2013 SN - 0031-9007 UR - http://hdl.handle.net/10366/146633 AB - We demonstrate theoretically that the temporal structure of high harmonic x-ray pulses generated with midinfrared lasers differs substantially from those generated with near-infrared pulses, especially at high photon energies. In particular, we show... LA - eng TI - Zeptosecond High Harmonic keV X-Ray Waveforms Driven by Midinfrared Laser Pulses DO - 10.1103/PhysRevLett.111.033002 T2 - Physical Review Letters VL - 111 ER -