@article{63,
  author = {Samuel Beaulieu and Heide Ibrahim and Benjamin Wales and Bruno Schmidt and Nicolas Thiré and Éric Bisson and Christoph Hebeisen and Vincent Wanie and Mathieu Giguere and Jean-Claude Kieffer and Joseph Sanderson and Michael Schuurman and François Légaré},
  title = {Taple-top imaging of the non-adiabatically driven isomerization in the acetylene cation},
  abstract = {<p>One of the primary goals of modern ultrafast science is to follow nuclear and electronic evolution of molecules as they undergo a photo-chemical reaction. Most of the interesting dynamics phenomena in molecules occur when an electronically excited state is populated. When the energy difference between electronic ground and excited states is large, Free Electron Laser (FEL) and HHG-based VUV sources were, up to date, the only light sources able to efficiently initiate those non-adiabatic dynamics. We have developed a simple table-top approach to initiate those rich dynamics via multiphoton absorption. As a proof of principle, we studied the ultrafast isomerization of the acetylene cation. We have chosen this model system for isomerization since the internal conversion mechanism which leads to proton migration is still under debate since decades. Using 266 nm multiphoton absorption as a pump and 800 nm induced Coulomb Explosion as a probe, we have shoot the first high-resolution molecular movie of the non-adiabatically driven proton migration in the acetylene cation. The experimental results are in excellent agreement with high level ab initio trajectory simulations.</p>
},
  year = {2014},
  journal = {APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts},
  month = {May 2014},
  url = {Taple-top imaging of the non-adiabatically driven isomerization in the acetylene cation},
}