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We apply the time-dependent analytical R-matrix theory to develop a movie of hole motion in a Kr atom upon ionization by strong circularly polarized field. We find rich hole dynamics, ranging from rotation to swinging motion. The motion of…

Atomic Physics · Physics 2015-06-22 Ingo Barth , Olga Smirnova

In the recent work of Herath et al. [Phys. Rev. Lett. 109, 043004 (2012)] the first experimental observation of a dependence of strong-field ionization rate on the sign of the magnetic quantum number m (of the initial bound state (n,l.m))…

Atomic Physics · Physics 2015-06-23 J. H. Bauer , Francisca Mota-Furtado , Patrick F. O'Mahony , Bernard Piraux , K. Warda

We present a theoretical study of the impact of an electrostatic field combined with non-resonant linearly polarized laser pulses on the rotational dynamics of linear molecules. Within the rigid rotor approximation, we solve the…

Atomic Physics · Physics 2015-06-05 Juan J. Omiste , Rosario González-Férez

We take advantage of the information provided by use of elliptical polarization in a recent two-electron release time experiment [A.N. Pfeiffer et al., Nature Physics 7, 428 (2011)]. This allows a comparative test of the currently dominant…

Atomic Physics · Physics 2012-08-09 X. Wang , J. Tian , A. N. Pfeiffer , C. Cirelli , U. Keller , J. H. Eberly

We demonstrate that strong-field ionization of atoms driven by circularly polarized light becomes an adiabatic process when described in the frame rotating with the laser field. As a direct consequence, a conservation law emerges: in the…

The induced polarization of a beam of polar clusters or molecules passing through an electric or magnetic field region differs from the textbook Langevin-Debye susceptibility. This distinction, which is important for the interpretation of…

Atomic and Molecular Clusters · Physics 2008-07-09 J. Bulthuis , J. A. Becker , R. Moro , V. V. Kresin

In relation to our original paper [M. Droth et al., Phys. Rev. B 94, 075404 (2016)], the Comment by Li et al. [Phys. Rev. B 98, 167403 (2018)] claims to have identified a "mistake in constructing the adiabatic process of the…

Mesoscale and Nanoscale Physics · Physics 2018-10-30 Matthias Droth , Guido Burkard , Vitor M. Pereira

We present a simple and general coherence model for multiorbital tunnel ionization of molecules, which we incorporate into our previously developed density matrix approach for sequential double ionization [Yuen and Lin, Phys. Rev. A 106,…

Atomic Physics · Physics 2023-09-07 C. H. Yuen , C. D. Lin

We coincidently measure the molecular frame photoelectron angular distribution and the ion sum-momentum distribution of single and double ionization of CO molecules by using circularly and elliptically polarized femtosecond laser pulses,…

Atomic Physics · Physics 2015-06-04 J. Wu , L. Ph. H. Schmidt , M. Kunitski , M. Meckel , S. Voss , H. Sann , H. Kim , T. Jahnke , A. Czasch , R. Dörner

We perform time-dependent calculations of strong-field ionization of He by elliptically polarized light in configuration of recent attoclock measurements of Boge {\em et al} [PRL {\bf 111}, 103003 (2013)]. By solving a 3D time-dependent…

Atomic Physics · Physics 2026-03-03 I. A. Ivanov , A. S. Kheifets

Spin effects in the tunneling regime of strong field ionization of hydrogenlike highly charged ions in linearly as well as circularly polarized laser fields are investigated. The impact of the polarization of a laser field on the spin…

Quantum Physics · Physics 2018-07-04 Enderalp Yakaboylu , Michael Klaiber , Karen Z. Hatsagortsyan

Using a three-dimensional quasiclassical technique we explore molecular double ionization by a linearly polarized, infrared (800~nm) 27~fs laser pulse. For intensities ranging from the tunneling to the over-the-barrier regime, we identify…

Atomic Physics · Physics 2011-01-27 A. Emmanouilidou , D. S. Tchitchekova

Study on ionization process of molecules in an intense infrared laser field is of paramount interest in strong-field physics and constitutes the foundation of imaging of molecular valence orbitals and attosecond science. We show measurement…

The title of this article is misleading. The authors have investigated a resonator but not a tunneling barrier see also Refs.\cite{Winful2} The measured superluminal group velocity and discussed is that studied on a Lorentz-Lorenz…

Quantum Physics · Physics 2007-10-29 G. Nimtz , A. A. Stahlhofen

We develop the recently proposed analytical R-matrix (ARM) method to encompass strong field ionisation by circularly polarised fields, for atoms with arbitrary binding potentials. Through ARM, the effect of the potential can now be included…

Atomic Physics · Physics 2013-08-05 Jivesh Kaushal , Olga Smirnova

We present a detailed comparison of strong-field ionization of diatomic molecules and their companion atoms with nearly equal ionization potentials. We perform calculations in the length and velocity gauge formulations of the molecular…

Atomic Physics · Physics 2009-11-10 Thomas Kim Kjeldsen , Lars Bojer Madsen

We theoretically investigate tunneling through free-space or dielectric nanogaps between metallic nanocontacts driven by ultrashort ultrabroadband light pulses. For this purpose we develop a time-dependent quasiclassical theory being…

Mesoscale and Nanoscale Physics · Physics 2021-09-01 Sangwon Kim , Tobias Schmude , Guido Burkard , Andrey S. Moskalenko

We study the non-linear Breit-Wheeler process $\vec \gamma' + \vec L \to e^+ + e^-$ in the interaction of linearly polarized probe photons ($\vec \gamma'$) with a linearly polarized laser beam ($\vec L$). In particular, we consider the…

High Energy Physics - Phenomenology · Physics 2020-12-02 Alexander I. Titov , Burkhard Kampfer

We investigate dissociative single and double ionization of HeH+ induced by intense femtosecond laser pulses. By employing a semi-classical model with nuclear trajectories moving on field-dressed surfaces and ionization events treated as…

Atomic Physics · Physics 2018-10-24 Lun Yue , Philipp Wustelt , A. Max Sayler , Gerhard G. Paulus , Stefanie Gräfe

We introduce here a coherent technique to inject, extract, and velocity filter neutral atoms in a ring trap coupled via tunneling to two additional waveguides. By adiabatically following the transverse spatial dark state, the proposed…

Atomic Physics · Physics 2015-06-19 Yurii Loiko , Veronica Ahufinger , Ricard Menchon-Enrich , Gerhard Birkl , Jordi Mompart