English
Related papers

Related papers: Laser-Cluster-Interaction in a Nanoplasma-Model wi…

200 papers

Nano-plasmas produced, e.g. in clusters after short-pulse laser irradiation, can show collective excitations as derived from the time evolution of fluctuations in thermodynamic equilibrium. Molecular dynamical simulations are performed for…

Plasma Physics · Physics 2018-01-17 H. Reinholz , G. Röpke , I. Broda , I. Morozov , R. Bystryi , Y. Lavrinenko

In this study, we utilize intense laser pulses and advanced quantum mechanical frameworks to investigate the behavior of high-velocity electrons within magnetized plasma environments. The focus of our research is placed within the context…

Plasma Physics · Physics 2024-12-31 B. S. Sharma , Garima Yadav , N. K. Jaiman , D. N. Gupta

A recently developed method of nanoclusters growth in a pulsed plasma is studied by means of molecular dynamics. A model that allows one to consider high-energy charged particles in classical molecular dynamics is suggested, and applied for…

Mesoscale and Nanoscale Physics · Physics 2015-03-10 Alexey A. Tal , E. Peter Müger , Igor A. Abrikosov , Nils Brenning , Iris Pilch , Ulf Helmersson

We experimentally investigate the impact of pulse shape on the dynamics of laser-generated plasma in rare gases. Fast-rising triangular pulses with a slower decay lead to early ionization of the air and depose energy more efficiently than…

A new regime in the interaction of a two-colour ($\omega$,$2\omega$) laser with a nanometre-scale foil is identified, resulting in the emission of extremely intense, isolated attosecond pulses - even in the case of multi-cycle lasers. For…

Plasma Physics · Physics 2020-04-22 Y. X. Zhang , S. Rykovanov , Mingyuan Shi , C. L. Zhong , X. T. He , B. Qiao , M. Zepf

We report on experimental results in a new regime of a relativistic light-matter interaction employing mid-infrared (3.9-micrometer wavelength) high-intensity femtosecond laser pulses. In the laser generated plasma, the electrons reach…

Pronounced maximum absorption of laser light irradiating a rare-gas or metal cluster is widely expected during the linear resonance (LR) when Mie-plasma wavelength $\lambdaM$ of electrons equals the laser wavelength $\lambda$. On the…

Plasma Physics · Physics 2018-06-28 S. S. Mahalik , M. Kundu

A two-dimensional model atom is employed to study the ionization behavior of initially excited atomic states in highly-frequent intense laser pulses beyond the dipole approximation. An additional regime of ionization suppression is found at…

Atomic Physics · Physics 2009-11-11 Andreas Staudt , Christoph H. Keitel , John S. Briggs

The ionization dynamics of a Xenon cluster with 40 atoms is analyzed under a pum p probe scenario of laser pulses where an infrared laser pulse of 50 fs length follows with a well defined time delay a VUV pulse of the same length and peak…

Atomic and Molecular Clusters · Physics 2009-11-10 Ch. Siedschlag , J. M. Rost

In the double-cone ignition inertial confinement fusion scheme, high density DT fuel is rapidly heated with high-flux fast electrons, which are generated by short and intense laser pulses. Gold cone target is usually used to shorten the…

Plasma Physics · Physics 2023-06-28 Xu Liu , Dong Wu , Jie Zhang

Pulsed laser excitation causes the luminescence of Nitrogen Vacancy centers in diamond to unexpectedly decrease with increasing pulse energy. This decrease is observed in both the negatively charged and neutral centers and is caused by…

Mesoscale and Nanoscale Physics · Physics 2017-12-22 Robert Chapman , Taras Plakhotnik

The presence of shell structure and the accompanying high level degeneracy leads to a strengthening of the pairing interaction in some metallic nanoclusters and ions. It is predicted that for some specific systems one can expect a large…

Superconductivity · Physics 2009-11-11 Y. N. Ovchinnikov , V. Z. Kresin

The adsorption of Ag$_3$ and Ag$_4$ clusters on the $\alpha$-Al$_2$O$_3$(0001) surface is explored with density functional theory. Within each adsorbed cluster, two different cluster-surface interactions are present. We find that silver…

Materials Science · Physics 2007-05-23 Elizabeth A. Sokol , Sara E. Mason , Valentino R. Cooper , Andrew M. Rappe

We perform a numerical study of the interaction of a high-intensity laser pulse with a nano-structured target. In particular, we study a target where the nano-structuring increases the absorption rate as compared to the flat target case.…

Popular Physics · Physics 2014-12-19 A. Gonoskov , C. Harvey , A. Ilderton , F. Mackenroth , M. Marklund

Interaction of axisymmetrically-polarized (radially or azimuthally-polarized), relativistically intense laser pulses (ALP) with under-dense plasma is shown experimentally to be different from the interaction of conventional Gaussian pulses.…

Polarization and radiation reaction (RR) effects in the interaction of a superintense laser pulse (I > 10^23 W/cm^2) with a thin plasma foil are investigated with three dimensional particle-in-cell (PIC) simulations. For a linearly…

Plasma Physics · Physics 2012-02-01 M. Tamburini , T. V. Liseykina , F. Pegoraro , A. Macchi

Intense, ultrashort pulses of 800 nm laser light (12 fs, $\sim$4 optical cycles) of peak intensity 5$\times$10$^{14}$ W cm$^{-2}$ have been used to irradiate gas-phase Xe$_n$ clusters ($n$=500-25,000) so as to induce multiple ionization and…

Atomic and Molecular Clusters · Physics 2015-05-19 D. Mathur , F. A. Rajgara

Pulse shaping provides a significant level of control and precision when optimizing laser-plasma interactions. Pulse shaping enables precise control and manipulation, resulting in enhanced energy deposition, optimized particle acceleration,…

Plasma Physics · Physics 2024-03-26 A. A. Molavi Choobini , F. M. Aghamir , S. S. Ghaffari-Oskooei

We study ab initio computations of the interaction of Lithium with a strong laser field. Numerical solutions of the time-dependent fully-correlated three-particle Schroedinger equation restricted to the one-dimensional soft-core…

Atomic Physics · Physics 2009-11-10 Camilo Ruiz , Luis Plaja , Luis Roso

The hot intracluster plasma in clusters of galaxies is weakly magnetized. Mergers between clusters produce gas compression and motions which can increase the magnetic field strength. In this work, we perform high-resolution non-radiative…

Cosmology and Nongalactic Astrophysics · Physics 2019-09-30 Bryan Brzycki , John ZuHone