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  1. No Access

    Chapter

    Strong Field Ionization in a Multi-color Field

    We describe several implementations of multi-color sha** of the optical cycles of intense laser pulses, which allow direct control of strong-field dynamics and have important implications for many of their a...

    T. Balciunas, A. J. Verhoef, S. Haessler, A. V. Mitrofanov, G. Fan… in Attosecond Physics (2013)

  2. No Access

    Article

    Pulse fidelity control in a 20-μJ sub-200-fs monolithic Yb-fiber amplifier

    We discuss nonlinearity management versus energy scalability and compressibility in a three-stage monolithic 100-kHz repetition rate Yb-fiber amplifier designed as a driver source for the generation and tunabl...

    A. Fernández, L. Zhu, A. J. Verhoef, D. Sidorov-Biryukov, A. Pugzlys… in Laser Physics (2011)

  3. No Access

    Article

    Time-and-energy resolved measurement of the cascaded Auger decay in krypton

    The cascaded Auger decay following ionization or excitation with 94 eV soft-X-ray pulses from the 3d subshell in krypton has been energy-and-time-resolved for the first time. The decay time of the 4s ...

    A. J. Verhoef, A. V. Mitrofanov, X. T. Nguyen, M. Krikunova, S. Fritzsche… in Laser Physics (2011)

  4. No Access

    Chapter and Conference Paper

    Optical Map** of Attosecond Ionization Dynamics by Few-Cycle Light Pulses

    Few-cycle light pulses are used to map ultrafast ionization dynamics in the time and frequency domain by all-optical means. Tunneling ionization encodes an attosecond phase mask, suggesting a promising method ...

    A. J. Verhoef, A. Mitrofanov, E. E. Serebryannikov, D. Kartashov… in Ultrafast Phenomena XVI (2009)

  5. No Access

    Article

    Attosecond real-time observation of electron tunnelling in atoms

    Atoms exposed to intense light lose one or more electrons and become ions. In strong fields, the process is predicted to occur via tunnelling through the binding potential that is suppressed by the light field...

    M. Uiberacker, Th. Uphues, M. Schultze, A. J. Verhoef, V. Yakovlev, M. F. Kling… in Nature (2007)

  6. No Access

    Article

    Compression of the pulses of a Ti:sapphire laser system to 5 femtoseconds at 0.2 terawatt level

    High intensity contrast ratio, pre-pulse free pulses with pulse duration of 5 fs and pulse energy of 1 mJ were generated at a repetition rate of 1 kHz by compressing the output pulses of a multi-stage Ti:sapph...

    A.J. Verhoef, J. Seres, K. Schmid, Y. Nomura, G. Tempea, L. Veisz… in Applied Physics B (2006)

  7. Article

    Source of coherent kiloelectronvolt X-rays

    X-ray lasers do exist — table-top ones even — but they generally produce ‘soft’ X-rays with wavelengths of 5–120 nanometres, a little longer than those used in medical X rays, and energies of only a few hundre...

    J. Seres, E. Seres, A. J. Verhoef, G. Tempea, C. Streli, P. Wobrauschek… in Nature (2005)

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