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SCIENTIFIC AXIS 1: Predict and experiment light-induced surface modification processes

The first scientific axis will mainly provide, over the long term, scientific and technical outcomes for the prediction of events occurring in the timescale of ultrashort laser pulse interaction with the surface material, such as multi-scale multi-physics simulation algorithms of light absorption.



MAIN SCIENTIFIC OBJECTIVES

To identify and control the fundamental process guiding the transient evolution of light absorption, the strategy is based on:

  • The prediction of the light energy distribution and the involved fundamental processes
  • The development of multi-scale multi-physics simulation codes
  • The spatial arrangement of organized surface modification and defects by controlling local energy absorption
  • The control of local energy absorption to provide highly precise and large-scale techniques
  • The extension of surface engineering processes on multiscale and in 3D up to 3D optical design.


SCIENTIFIC BOTTLENECKS

The teams of Axis 1 are working towards the resolution of various scientific locks by developing approaches to:
  • Predict a large number of physical events occurring in the same timescale of laser pulse interaction with the surface material
  • Model transient optical properties by approaches combining ab initio electronic structure calculations with quantum many-body physics
  • Observe material responses at the atomic scale
  • Program spatio-temporal design, adaptive feedback loops, optimization concepts
  • Couple coherently laser light distribution with resonant excitation, surface roughness diffusion, and light-induced defects
  • Design surfaces by additive fabrication processes
 

RESEARCH PROJECTS