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Related papers: Interatomic Coulombic decay in helium nanodroplets

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We study the single ionization of hydrogen and helium by the impact of a highly-charged Coulomb projectile. To interpretate the cross section we introduce a diagonal Pad\'{e} approximant. We find that the use of Pad\'{e}% [4,4] describes…

Atomic Physics · Physics 2021-05-26 J. E. Miraglia

Exciton binding energies of hundreds of meV and strong light absorption in the optical frequency range make transition metal dichalcogenides (TMDs) promising for novel optoelectronic nanodevices. In particular, atomically thin TMDs can be…

Mesoscale and Nanoscale Physics · Physics 2018-04-24 Simon Ovesen , Samuel Brem , Christopher Linderälv , Mikael Kuisma , Paul Erhart , Malte Selig , Ermin Malic

We report on giant circular dichroism (CD) of a molecule inserted into a plasmonic hot spot. Naturally occurring molecules and biomolecules have typically CD signals in the UV range, whereas plasmonic nanocrystals exhibit strong plasmon…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 Hui Zhang , A. O. Govorov

Coulomb implosion mechanism of the negatively charged ion acceleration in laser plasmas is proposed. When a cluster target is irradiated by an intense laser pulse and the Coulomb explosion of positively charged ions occurs, the negative…

Energy-transfer processes can be viewed as being due to the emission of a virtual photon. It is demonstrated that the emission of virtual photons and thus of energy transfer is stimulated by the sheer presence of photons. We concentrate…

Chemical Physics · Physics 2024-06-26 Lorenz S. Cederbaum , Alexander I. Kuleff

Diffusive nuclear burning of H by an underlying material capable of capturing protons can readily consume H from the surface of neutron stars (NSs) during their early cooling history. In the absence of subsequent accretion, it will be…

High Energy Astrophysical Phenomena · Physics 2015-05-19 Philip Chang , Lars Bildsten , Phil Arras

Atomic defect centers in diamond have been widely exploited in numerous quantum applications like quantum information, sensing, quantum photonics and so on. In this context, there is always a requirement to improve and optimize the…

Materials Science · Physics 2021-03-25 T. Chakraborty , K. J. Sankaran , K. Srinivasu , R. Nongjai , K. Asokan , C. H. Chen , H. Niu , K. Haenen

The microhydration of rock salt (NaCl) molecules was investigated using high-resolution Penning ionization electron spectroscopy (PIES) in helium nanodroplets. Although model calculations predict that NaCl molecules are fully submerged…

This review has two principal aims. The first of these is to provide a comprehensive overview of the applications of HNDs in the study of collections of atoms and molecules, i.e. clusters and complexes. These clusters and complexes must…

Atomic and Molecular Clusters · Physics 2018-05-10 A. Mauracher , O. Echt , A. M. Ellis , S. Yang , D. K. Bohme , J. Postler , A. Kaiser , S. Denifl , P. Scheier

Helium tagging in action spectroscopy is an efficient method for measuring the absorption spectrum of complex molecular ions with minimal perturbations to the gas phase spectrum. We have used superfluid helium nanodroplets doped with…

Atomic and Molecular Clusters · Physics 2019-12-19 Michael Gatchell , Paul Martini , Felix Laimer , Marcelo Goulart , Florent Calvo , Paul Scheier

Strong field photoelectron holography has been proposed as a means for interrogating the spatial and temporal information of electrons and ions in a dynamic system. After ionization, part of the electron wave packet may directly go to the…

Atomic Physics · Physics 2016-02-22 Xiaohong Song , Cheng Lin , Zhihao Sheng , Peng Liu , Zhangjin Chen , Weifeng Yang , Shilin Hu , C. D. Lin , Jing Chen

We accurately analyze the $^6$He+$^{209}$Bi scattering at 19 and 22.5 MeV near the Coulomb barrier energy, using the continuum-discretized coupled-channels method (CDCC) based on the $n$+$n$+$^4$He+$^{209}$Bi four-body model. The three-body…

Nuclear Theory · Physics 2009-11-11 T. Matsumoto , T. Egami , K. Ogata , Y. Iseri , M. Kamimura , M. Yahiro

Alkali dimers, $\mathrm{Ak}_2$, located on the surface of a helium nanodroplet, are set into rotation through the polarizability interaction with a nonresonant 1-ps-long laser pulse. The time-dependent degree of alignment is recorded using…

We report a systematic investigation of isomer- and state-dependent reactions between Coulomb-crystallised laser-cooled Ca$^+$ ions and \emph{cis/trans}-1,2-dichloroethene (DCE) isomers. By manipulating the electronic state populations of…

Chemical Physics · Physics 2026-01-12 Lei Xu , Richard Karl , Jutta Toscano , Stefan Willitsch

We study single-photon ionization of aligned H$_2^+$ in low-intensity near-circular laser fields with lower photon energy numerically and analytically. The photoelectron momentum distribution (PMD) within the laser polarization plane,…

Atomic Physics · Physics 2025-05-13 Z. Y. Chen , S. Q. Shen , M. Q. Liu , J. Y. Che , Y. J. Chen

Coulomb explosion imaging (CEI) is a powerful technique for capturing the real-time motion of individual atoms during ultrafast photochemical reactions. CEI generates high-dimensional data with naturally embedded correlations that allow…

The Coulomb dissociation is studied of the $^8L$i nuclei on Pb target at energies 40.3 and 69.5 MeV/nucleon, in the experiment NSCL #03038. The $^{6,7}$Li, $^{4,6}$He, and $^2$H fragments were identified. The resonance decay and the direct…

Nuclear Experiment · Physics 2017-11-21 Zoltàn Seres

The effect of electron correlation on the photocurrent of self-assembled InAs/InGaAs quantum dot infrared photo-detector (QDIPs) is studied. It is found that Coulomb interaction and level mixing in the many-body open system lead to double…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Yia-Chung Chang , David M. -T. Kuo

We present an experimental study of the dynamics following the photo-excitation and subsequent photo-ionization of single Cs atoms on the surface of helium nanodroplets. The dynamics of excited-Cs-atom desorption and re-adsorption as well…

Atomic and Molecular Clusters · Physics 2021-10-18 Nicolas Rendler , Audrey Scognamiglio , Katrin Dulitz , Frank Stienkemeier , Manuel Barranco , Marti Pí , Nadine Halberstadt

The main mechanism of energy loss in capacitors with nanoscale dielectric films is leakage currents. Using the example of Al-Al2O3-Al, we show that there are two main contributions, namely the cold field emission effect and the hopping…

Applied Physics · Physics 2020-11-09 Eduard Ilin , Irina Burkova , Timothy Draher , Eugene V. Colla , Alfred Hubler , Alexey Bezryadin