Nguyen, Ngoc T.Lucchese, R. R.Lin, Chii D.Le, Anh Thu2017-04-102017-04-102016-06-21http://hdl.handle.net/2097/35358Citation: Nguyen, N. T., Lucchese, R. R., Lin, C. D., & Le, A. T. (2016). Probing and extracting the structure of vibrating SF6 molecules with inner-shell photoelectrons. Physical Review A, 93(6), 9. doi:10.1103/PhysRevA.93.063419We propose a scheme for probing the structure of vibrating molecules with photoelectrons generated from ultrashort soft-x-ray pulses. As an example we analyze below-100-eV photoelectrons liberated from the S(2p) orbital of vibrating SF6 molecules to image very small structural changes of molecular vibration. In particular, photoionization cross sections and photoelectron angular distributions (PAD) at nonequilibrium geometries can be retrieved accurately with photoelectrons near the shape resonance at 13 eV. This is achieved with a pump-probe scheme, in which the symmetric stretch mode is first Raman excited predominantly by a relatively short laser pulse and then later probed at different time delays by a few-femtosecond soft-x-ray pulse with photon energy near 200 eV.This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).Free-Electron LaserHigh Harmonic-GenerationAligned MoleculesDynamicsDiffractionPhotoionizationArticle