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Ionization with low-frequency fields in the tunneling regime

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons37832

Camus,  Nicolas
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons31033

Senftleben,  A.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons31014

Schröter,  C. D.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons31125

Ullrich,  J.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;
Physikalisch-Technische Bundesanstalt, D-38116 Braunschweig, Germany;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30822

Moshammer,  R.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

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Citation

Dura, J., Camus, N., Thai, A., Britz, A., Hemmer, M., Baudisch, M., et al. (2013). Ionization with low-frequency fields in the tunneling regime. Scientific Reports, 3: 2675. doi:doi:10.1038/srep02675.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0014-64FE-B
Abstract
Strong-field ionisation surprises with richness beyond current understanding despite decade long investigations. Ionisation with mid-IR light has promptly revealed unexpected kinetic energy structures that seem related to unanticipated quantum trajectories of the electrons. We measure first 3D momentum distributions in the deep tunneling regime (γ = 0.3) and observe surprising new electron dynamics of near-zero momentum electrons and extremely low momentum structures, below the eV, despite very high quiver energies of 95 eV. Such level of high-precision measurements at only 1 meV above the threshold, despite 5 orders higher ponderomotive energies, has now become possible with a specifically developed ultrafast mid-IR light source in combination with a reaction microscope, thereby permitting a new level of investigations into mid-IR recollision physics.