#3. Computer modeling of laser and ion beam interactions with materials

Organizers

  • Miao He, University of Virginia, USA (mh5wz@virginia.edu)
  • Tatiana E. Itina, Université de Lyon, France
  • Zbigniew Postawa, Jagiellonian University, Poland
  • Leonid V. Zhigilei, University of Virginia, USA

Description

Computer modeling of laser and ion beam interactions with materials is an active area of research motivated by the broad range of practical applications that include surface nano and micro-structuring, nanoparticle and nanostructure formation, high-precision cutting and drilling, mass spectrometry and compositional depth profiling, among many others. The common characteristic of laser and particle irradiation is its ability to bring an irradiated material to a state of strong electronic, thermal, mechanical, and thermodynamic nonequilibrium, thus triggering complex transient atomic dynamics and electronic phenomena that can be understood through multiscale computer modeling.

Many of the computational challenges faced by researchers working on modeling of laser and ion irradiation of materials are common. They include the description of non-thermal processes induced by strong electronic excitation, incorporation of the description of electronic energy transport and electron-phonon equilibration into classical molecular dynamics modeling, design of dynamic boundary conditions capable of absorbing the stress waves generated by rapid energy deposition, multiscale treatment of strongly coupled ultrafast non-thermal processes and slower long-term material relaxation, etc. The research communities working on modeling of laser-materials interactions, ion irradiation in the regime of nuclear stopping and collisional cascades, and highenergy ion irradiation in the electronic stopping regime seldom intersect at research conferences and interact with each other. The goal of this symposium is to provide an opportunity for the computational researchers investigating laser and ion beam interactions with materials to meet, exchange ideas, and brainstorm on overcoming the current computational challenges and roadblocks.

This symposium will cover a broad range of topics including (but are not limited to):
• Atomistic, mesoscopic, continuum and multiscale modeling of laser-materials interactions – from fundamentals of laser-matter interactions to simulations of modification of material structure and surface morphology, ablation, film deposition, nanoparticle generation, mass spectrometry;
• Modeling of ion bombardment in the nuclear and electronic stopping regimes – from fundamentals of ion-materials interactions to simulations of ion-induced modification of material structure and surface morphology, compositional depth profiling, analytical techniques of secondary ion/neutral mass spectrometry, mitigation of radiational damage, materials for nuclear reactors, and material processing by ion tracks.

Confirmed Keynote Speakers

• Alexey N. Volkov, (University of Alabama, USA)
• Anne Tanguy (Institut National des Sciences Appliquées de Lyon, France)
• George Tsibidis (Institute of Electronic Structure and Laser at Foundation for Research and Technology, Greece)
• Herbert M. Urbassek (Technical University of Kaiserslautern, Germany)