PLAS@PAR Photo competition

Jointly with each scientific day, PLAS@PAR organizes a photo/video competition open to all PLAS@PAR researchers.

Photo & video competition 2018

1^st Prize: Moustafa Zmerli, LCPMR (category: experiments & observations)

Coulomb Explosion of Iodomethane

Here we present the momentum distribution of three ions, Hydrogen, Carbon and Iodine, detected in coincidence, after photodissociation of Methyle Iodide using Tender X-ray photons (5 keV.




1^st Prize: Pierre Lesaffre, LERMA (category: theory & simulations)

Turbulent energy dissipation field in magneto-hydrodynamic turbulence

Rendering of the fractal geometry of the extrema of turbulent dissipation in a pseudo-spectral simulation of non-ideal magneto-hydrodynamical turbulence. Viscous and ohmic dissipations appear in green and red, respectively, and that due to the friction between ions and neutrals is blue - (code ANK, Giorgos Momferratos). 


 

1^st Prize: Julien Guyot, LERMA & LPP (category: video)

Mad jets collision

Collision of two jets expanding axially in a magnetized medium.

- Top image: 3D view of the system, which is cut in half to observe its interior.

- Bottom left image: velocity magnitude slice in the plane of the two jets system.

- Bottom right image: density slice in the perpendicular plane of the jets, in the region of collision where a Rayleigh-Taylor instability is developing.

Photo & video competition 2017

1^st Prize: Manuel de Anda Villa, INSP (category: experiments & observations)

Klimt in the Laboratory

After thermal annealing, the thin gold layer deposited on top of the Si substrate migrated and concentrated on some regions forming presumably gold crystallites but leaving behind uncovered Si islands and creating a beautiful “Klimt effect”.

1^st Prize: Marie Labeye, LCPMR (category: theory & simulations)

One dimensional Helium continuum state

This is the bielectronic wave-function of a doubly ionized state of a one-dimensional system modeling Helium. This wave-function was calculated by inverse iteration performed on the Hamiltonian in a simulation box for an energy of 2.2 eV. 

1^st Prize: Andrea Sgattoni, LULI & LESIA - François Amiranoff, LULI (category: video)

Generation of radio waves in the interplanetary medium

Fast particles are emitted during solar flares and propagate from the Sun outwards. During their propagation in the solar-wind plasma, they excite electron plasma waves which through several three-wave processes decay into radio waves. The theoretical and numerical study of these mechanisms together with spacecraft measurements of these waves, help us to understand the energy flux of fast particles from the Sun to the Earth. This is very important to examine the impact of these particles on industrial infrastructures both on the Earth and on satellites.

Photo competition 2016

1^st Prize: Anna Levy, INSP (category: experiments & observations)

Anna's contribution shows gold nanoparticles used for femtosecond laser-irradiation experiments observed by SEM.

1^st Prize: Andrea Sgattoni, LULI/LESIA (category: numerical simulation)

Andrea is a postdoctoral fellow, his contribution shows 3D Particle In Cell simulation of a thin dense plasma slab deformed and accelerated by light pressure. Electron density in red vs Ion density in blue highlight the target deformation, the imprints of the laser fields and the rise of instabilities.

1^st Prize: François Risoud, LCPMR (category: numerical simulation)

François as selected a quantum simulations of an electron ionized in a strong laser field. Phase space representation (Wigner function) of the electron at the ionic core position (x = 0), as a function of time.

Photo competition 2014

1^st Prize: Romain Mayrand, LPP

2^nd Prize: Gabriel Labaigt, LCPMR