Multi-scale modeling of laser-matter interaction
Our models involve several scales and allow to describe the electron dynamics at the micrometer and attosecond scale, taking into account out-of-equilibrium processes arising in laser-irradiated materials.
- Electron flow dynamic level: the laser field may couple with the nano-structured materials and lead to useful electron flows for atto-second science and laser-assisted atomic probe tomography.
- Electromagnetic modes coupled with the laser wave
- Quantum level: light coupling with electrons and with atoms of the solid.
- Microfluidic level: laser-molten layer can move and lead to the excitation of capillary waves, inducing several varieties of nano-structures.
We have developed several in-house simulation codes available for collaborative usage.
- Flirt 1D/2D: simulation code aimed to calculate heating, excitation and melting of flat silicon samples femtosecond laser irradiation.
- Flaps2D: simulation code aimed to describe the modification of optical properties and heating of nanostructures irradiated by laser light. Currently in optimization stage. A private Wiki is also available.
- Extended SPP theory: this collection of routines developed in Python allows to open new perspectives in plasmonics for novel applications [see the announcement]. Includes (i) a generalized SPP theory at simple interfaces with accounting for the materials damping, (ii) SPP theory in multilayered materials, also strictly accounting for losses.
- Python implementation of several flavors of Keldysh models are also available.
- A database of experimentally obtained LIPSS is available.
- Improving control on the formation of sub-diffractive nanostructure formation induced by intense lasers
- Improving the control over atomic probe tomography in band gap materials.
- Studying the damage threshold of band gap materials as function of laser parameters.
Here are links of some of our collaborators.
- TD-DFT quantum simulations using Octopus, developed by a worldwide collaboration.
- Python-MEEP examples developed by Dr. Filip Dominec.
Just for fun
Video of the “Flirt” code development since first commits on the Git repository. 🙂