Molecular Orbital Tomography using Short Laser Pulses

Details Molecular Orbital Tomography using Short Laser Pulses Molecular Orbital Tomography using Short Laser Pulses

2007-12-21

arxiv.org/abs/0712.3710v1

Physics

Atomic Physics

5 pages, 2 figures

Scientific paper

10.1103/PhysRevA.78.033410

Recently, a method to image molecular electronic wave functions using high harmonic generation (HHG) was introduced by Itatani \textit{et al.\} [Nature {\textbf{432}}, 876 (2004)]. We show that, while the tomographic reconstruction of general orbitals with arbitrary symmetry cannot be performed with long laser pulses, this becomes possible when extremely short pulses are used. An alternative reconstruction equation based on momentum matrix elements, rather than on dipole matrix elements, is proposed. We present simulations of the procedure for 2D model systems based on numerical solutions of the time-dependent Schr\"{o}dinger equation, and present results from further post-processing of the reconstructed orbitals.

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