| Résumé | High harmonics produced in aligned molecules contain structural information of bound-state electronic states. Our recent work has shown that high harmonic generation in aligned molecules is dependent on the symmetry and structure of the highest occupied molecular orbital (HOMO) [ J. Itatani, D. Zeidler, J. Levesque, et al., Phys. Rev. Lett. 94 123902 (2005)]. We show that it is possible to reconstruct the shape of the HOMO by applying a computerized tomography algorithm to the harmonic spectra obtained at different molecular alignments [ J. Itatani, J. Levesque, D. Zeidler, et al., Nature 432 867 (2004)]. In the present paper we review these findings and explain them using a simple but powerful analytical model. |
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