activity
20112026
most citedCoherent strong-field control of multiple states by a single chirped femtosecond laser pulse

88 citations · 131 across the 7 of their papers we have counts for

collaborators

7 papers

physics.optics2026

Shaper-based dispersion scan for the characterization of polarization-shaped laser fields

Darius Köhnke, Jan-Erik Havekost, Nick Robin Rother +4

We present a pulse-shaper-based dispersion-scan (d-scan) framework for the combined generation and characterization of polarization-tailored femtosecond laser fields. By integratin…

physics.atom-ph2025★ 1 cited

Multiphoton ionization with three-dimensional light fields

Darius Köhnke, Hans-Christian Ahlswede, Tim Bayer +1

We report the first observation of free-electron angular momentum wave packets generated by atomic multiphoton ionization with bichromatic three-dimensional (3D) polarization-tailo…

physics.atom-ph2023★ 5 cited

Bichromatic phase-control of interfering Autler-Townes spectra

T. Bayer, K. Eickhoff, D. Köhnke +1

We propose a new scheme to control the shape of the Autler-Townes (AT) doublet in the photoelectron spectrum from atomic resonance-enhanced multiphoton ionization (REMPI). The sche…

physics.atom-ph2022★ 9 cited

Determination of atomic multiphoton ionization phases by trichromatic multichannel wave packet interferometry

K. Eickhoff, D. Köhnke, L. Feld +2

We present a multichannel photoelectron interferometry technique based on trichromatic pulse shaping for unambiguous determination of quantum phases in multiphoton ionization (MPI)…

quant-ph2020★ 9 cited

Orbital angular momentum superposition states in transmission electron microscopy and bichromatic multiphoton ionization

K. Eickhoff, C. Rathje, D. Köhnke +5

The coherent control of electron beams and ultrafast electron wave packets dynamics have attracted significant attention in electron microscopy as well as in atomic physics. In ord…

physics.atom-ph2020★ 19 cited

Atomic photoionization dynamics in ultrashort cycloidal laser fields

T. Bayer, Ch. Philipp, K. Eickhoff +1

We present numerical simulations of ultrafast multiphoton ionization dynamics in a two-dimensional atomic model driven by co- and counterrotating circularly polarized single-color…