Parallel implementation of three-dimensional molecular dynamic simulation for laser-cluster interaction

Holkundkar, Amol R.

doi:10.1063/1.4835195

Cited by 7 publications

(3 citation statements)

References 23 publications

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“…In this section, we intend to give the simulation scheme employed to calculate the neutron yield from laser driven deuterium clusters in the beam-target interaction scheme 30,31 . The single cluster single intensity ion energy distribution function (IEDF) of D ions is determined by the molecular dynamic code − MDILAC 39,40 . In this code, a spherical cluster of size (R 0 ) is considered to be at the center of a three dimensional simulation box which is irradiated by the a high intensity Gaussian (time as well as space) laser pulse of near infra-red wavelength (λ = 800nm).…”

Section: Simulation Methodologymentioning

confidence: 99%

“…Earlier, we developed a molecular dynamic (MD) code -MDILAC (serial 39 as well as parallel on openMP framework 40 ) to study the interaction dynamics of medium and large sized atomic clusters driven by intense femtosecond laser fields [41][42][43][44] . In this paper, we present our computational studies on the fusion neutron yield from D clusters under beam-target interaction scheme design by taking into account the effects of cluster size and spatial laser intensity distribution.…”

Section: Introductionmentioning

confidence: 99%

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Effects of cluster size and spatial laser intensity distribution on fusion neutron generation by laser driven Deuterium clusters

Mishra,

Holkundkar

2016

Preprint

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A three dimensional molecular dynamic code is used to study the generation of fusion neutrons from Coulomb explosion of Deuterium clusters driven by intense near infra-red (NIR) laser (λ = 800nm) of femtosecond pulse duration (τ = 50 f s) under beam-target interaction scheme. We have considered various clusters of average sizes ( R 0 =80,140,200 Å) which are irradiated by a laser of peak spatial-temporal intensity of 1×10 18 W/cm 2 . The effects of cluster size and spatial laser intensity distribution on ion energies due to the Coulomb explosion of the cluster are included by convolution of single cluster single intensity ion energy distribution function (IEDF) over a range of cluster sizes and laser intensities. The final convoluted IEDF gets broadened on both lower and higher energy sides due to this procedure. Furthermore, the neutron yield which takes into account the convoluted IEDF, also gets modified by a factor of ∼2 compared to the case when convolution effects are ignored.a)

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Section: Simulation Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of cluster size and spatial laser intensity distribution on fusion neutron generation by laser driven Deuterium clusters

Mishra,

Holkundkar

2016

Preprint

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“…A classical molecular dynamics simulation model has been employed to study the interaction dynamics and energetics of the laser-cluster interaction [27,28]. Throughout this work we have used dimensionless units.…”

Section: Simulation Modelmentioning

confidence: 99%

Higher harmonics and attosecond pulse generation by laser induced Thomson scattering in atomic clusters

Venkat

Holkundkar

2019

Phys. Rev. Accel. Beams

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The generation of higher harmonics of intense lasers and associated attosecond pulses is a field of contemporary interest which promises a variety of applications ranging from the fundamental to applied sciences. In this work, we have probed the interaction of the intense (≳10 19 W=cm 2 ) 248 nm laser with Deuterium clusters using classical molecular dynamics simulation. The Thomson scattered radiation emitted by the electrons is considered by using standard Liénard-Wiechert potentials. We have studied the angular distribution of the radiation emitted by electrons and observed that the ponderomotive force exerted by these highly intense laser pulses leaves a very distinct signature of the radiated energy along a particular direction, which in principle has its own diagnostic potential to directly measure the intensities of incident laser pulses. Furthermore, the interaction of lasers with intensities ∼10 19 -10 21 W=cm 2 with atomic clusters results in the attosecond burst of energy in form of electromagnetic radiations, which fall under the XUV to soft x-rays regime of electromagnetic spectrum. The parameters of the atomic clusters, e.g., size (number of atoms), atomic species, etc. can be easily controlled experimentally and these in turn, change the number of electrons participating in the interaction process and hence, the properties of Thomson scattered radiation can be tuned accordingly.

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Electron–Ion Impact Energy Transfer in Nanoplasmas of Coulomb Exploding Clusters

Jortner

2017

Advances in Quantum Chemistry

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Parallel implementation of three-dimensional molecular dynamic simulation for laser-cluster interaction

Cited by 7 publications

References 23 publications

Effects of cluster size and spatial laser intensity distribution on fusion neutron generation by laser driven Deuterium clusters

Effects of cluster size and spatial laser intensity distribution on fusion neutron generation by laser driven Deuterium clusters

Higher harmonics and attosecond pulse generation by laser induced Thomson scattering in atomic clusters

Electron–Ion Impact Energy Transfer in Nanoplasmas of Coulomb Exploding Clusters

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