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Journal Article

Ionization with low-frequency fields in the tunneling regime

MPS-Authors
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Britz,  Alexander
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
ICFO-Institut de Ciences Fotoniques, 08860 Castelldefels (Barcelona), Spain;

External Ressource

https://doi.org/10.1038/srep02675
(Publisher version)

Fulltext (public)

srep02675.pdf
(Publisher version), 561KB

Supplementary Material (public)
There is no public supplementary material available
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:10.1038/srep02675.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-7DB8-2
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.