title: High-order harmonic spectroscopy for molecular imaging of polyatomic molecules.
abstract: High-order harmonic generation is a powerful and sensitive tool for probing atomic and molecular structures, combining in the same measurement an unprecedented attosecond temporal resolution with a high spatial resolution of the order of an angstrom. Imaging of the outermost molecular orbital by high-order harmonic generation has been limited for a long time to very simple molecules, like nitrogen. Recently we demonstrated a technique that overcame several of the issues that have prevented the extension of molecular orbital tomography to more complex species, showing that molecular imaging can be applied to a triatomic molecule like carbon dioxide. Here we report on the application of such a technique to nitrous oxide (N(2)O) and acetylene (C(2)H(2)). This result represents a first step towards the imaging of fragile compounds, a category which includes most of the fundamental biological molecules.
authors.affiliation: Istituto di Fotonica e Nanotecnologie, CNR, 20133 Milan, Italy. caterina.vozzi@ifn.cnr.it.
authors.forename: M
authors.initials: M
authors.lastname: Negro
authors.forename: M
authors.initials: M
authors.lastname: Devetta
authors.forename: D
authors.initials: D
authors.lastname: Faccialá
authors.forename: S
authors.initials: S
authors.lastname: De Silvestri
authors.forename: C
authors.initials: C
authors.lastname: Vozzi
authors.forename: S
authors.initials: S
authors.lastname: Stagira