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Fragmentation dynamics in the Coulomb explosion of hydrocarbons, specifically methane, ethane, propane, and butane, are investigated using time dependent density functional theory (TDDFT) simulations. The goal of this work is to elucidate…

Chemical Physics · Physics 2024-10-11 Samuel S. Taylor , Kálmán Varga , Károly Mogyorósi , Viktor Chikán , Cody Covington

We present a channel-resolved interpretation of laser-driven Coulomb explosion of the HCl dimer from an ensemble of trajectories. Three dominant outcomes are identified: a minor three-body channel and two four-body channels (sequential and…

Chemical Physics · Physics 2026-01-21 Chen Jiang , Cody L. Covington , Kalman Varga

Laser excitation of nanometer-sized atomic and molecular clusters offers various opportunities to explore and control ultrafast many-particle dynamics. Whereas weak laser fields allow the analysis of photoionization, excited-state…

Atomic and Molecular Clusters · Physics 2010-06-15 Th. Fennel , K. -H. Meiwes-Broer , J. Tiggesbaumker , P. -G. Reinhard , P. M. Dinh , E. Suraud

The ion phase-space dynamics in the Coulomb explosion of very large ($\sim 10^6 - 10^7$ atoms) deuterium clusters can be tailored using two consecutive laser pulses with different intensities and an appropriate time delay. For suitable sets…

Plasma Physics · Physics 2007-05-23 F. Peano , R. A. Fonseca , J. L. Martins , L. O. Silva

Calculating the energy absorption of atomic clusters as a function of the laser pulse length $T$ we find a maximum for a critical $T^*$. We show that $T^*$ can be linked to an optimal cluster radius $R^*$. The existence of this radius can…

Atomic and Molecular Clusters · Physics 2009-11-07 Christian Siedschlag , Jan M. Rost

Electromagnetic field produced in high-energy heavy-ion collisions contains much useful information, because the field can be directly related to the motion of the matter in the whole stage of the reaction. One can divide the total…

Nuclear Theory · Physics 2009-10-31 T. Osada , Y. Hama

A gas-phase sample consisting of lithium iodide, $\mathrm{LiI}$, molecules and their dimer $\mathrm{(LiI)}_2$, are Coulomb exploded by an intense 25 femtosecond laser pulse. In the case of $\mathrm{LiI}$, we focus on the double ionization…

We investigate the Rydberg states generation of Hydrogen atoms with intense laser pulses, by solving the time-dependent Schr\"odinger equation and by means of classical trajectory monte-carlo simulations. Both linearly polarized multi-cycle…

Atomic Physics · Physics 2015-06-22 Bin Zhang , Wenbo Chen , Zengxiu Zhao

Almost ten years ago, energetic neutral hydrogen atoms were detected after a strong-field double ionization of H$_2$. This process, called 'frustrated tunneling ionization', occurs when an ionized electron is recaptured after being driven…

We have studied the explosion dynamics of methane clusters irradiated by intense, femtosecond, 38 nm (32.6 eV) XUV laser pulses. The ion time-of-flight spectrum measured with a Wiley-McLaren-type time-of-flight spectrometer reveals…

Atomic and Molecular Clusters · Physics 2020-02-11 A. Helal , S. Bruce , H. Quevedo , J. Keto , T. Ditmire

In high energy heavy ion collisions and interacting cold atom systems, large elliptic flow anisotropies have been observed. For the large opacity ($\rho\sigma L\sim 10^{3}$) of the latter hydrodynamics is a natural consequence, but for the…

Nuclear Theory · Physics 2018-04-18 Yuliang Sun , Qingfeng Li , Fuqiang Wang

Formation of molecular H2 and O2 is experimentally studied under laser exposure of water colloidal solution to radiation of a Nd:YAG laser at pulse duration of 10 ns and laser fluence in the liquid of order of 100 J/cm2. It is found the…

General Physics · Physics 2017-05-24 E. V. Barmina , A. V. Simakin , G. A. Shafeev

Studies of strong field ionization have historically relied on the strong field approximation, which neglects all spatial dependence in the forces experienced by the electron after ionization. More recently, the small spatial inhomogeneity…

High-resolution mass spectra of helium droplets doped with C$_{60}$ and formic acid (FA) are ionized by electrons. Positive ion mass spectra reveal cluster ions [(C$_{60}$)$_p$FA$_n$]$^+$ together with their hydrogenated and dehydrogenated…

Atomic and Molecular Clusters · Physics 2022-11-21 Masoomeh Mahmoodi-Darian , Elias Jabbour Al Maalouf , Samuel Zöttl , Paul Scheier , Olof Echt

It is shown that the homogeneous state of the spatially separated electrons and holes in the coupled quantum wells (CQW) is instable if the layer charge density is smaller than the critical value specified by the parameters of the CQW. The…

Mesoscale and Nanoscale Physics · Physics 2014-12-22 V. S. Babichenko , I. Ya. Polishchuk , A. I. Pavlov , A. Guseynov , M. I. Gozman

We present a new approach to understanding star-to-star helium abundance variations within globular clusters. We begin with detailed radiation hydrodynamics simulations of cluster formation within giant molecular clouds, and investigate the…

Astrophysics of Galaxies · Physics 2020-03-18 Alison Sills

We develop a theory of Coulomb drag in ultraclean double layers with strongly correlated carriers. In the regime where the equilibration length of the electron liquid is shorter than the interlayer spacing the main contribution to the…

Strongly Correlated Electrons · Physics 2015-06-18 S. S. Apostolov , A. Levchenko , A. V. Andreev

Electron and ion acceleration in laser beam driven gas and solid-state plasmas are well-known and thoroughly investigated. Here we propose and numerically investigate an ion acceleration scheme using the Coulomb explosion of ion bunches…

Accelerator Physics · Physics 2025-01-28 Szabolcs Turnár , Zoltán Tibai , László Pálfalvi , Csaba Korpa , Gábor Almási , János Hebling

The formation of stable products of water decomposition under laser exposure of aqueous colloidal solutions of nanoparticles is experimentally studied. Laser exposure of colloidal solutions leads to formation of H2, O2, and H2O2. The…

Chemical Physics · Physics 2017-07-14 E. V. Barmina , S. V. Gudkov , A. V. Simakin , G. A. Shafeev

We report the generation of molecular hydrogen from water by laser irradiation, without any electrodes and photocatalysts. A near infrared pulsed nanosecond laser is used for exposure of colloidal solution of Au nanoparticles suspended in…

General Physics · Physics 2016-06-22 E. V. Barmina , A. V. Simakin , G. A. Shafeev