Polyatomic molecular structure retrieval using laser-induced electron diffraction

29th International Conference on Photonic, Electronic, and Atomic Collisions

Pullen, M.G.^1 ; Wolter, B.^1 ; Le, A.-T.^2 ; Baudisch, M.^1 ; Hemmer, M.^1 ; Senftleben, A.^3 ; Sclafani, M.^1 ; Schröter, C.D.^4 ; Ullrich, J.^4,5 ; Moshammer, R.^4 ; Lin, C.-D.^2 ; Biegert, J.^1,6

ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, Castelldefels (Barcelona)

08860, Spain^1

J. R. MacDonald Laboratory, Physics Department, Kansas State University, Manhattan

KS

66506-2604, United States^2

Universität Kassel, Institut für Physik und CINSaT, Heinrich-Plett-Str. 40, Kassel

34132, Germany^3

Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, Heidelberg

69117, Germany^4

Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, Braunschweig

38116, Germany^5

ICREA-Institució Catalana de Recerca i Estudis Avancãts, Barcelona

08010, Spain^6

关键词: Complex molecules;    Femtoseconds;    High-accuracy;    Laser induced;    Multiple bonds;    Polyatomic molecules;    Polyatomics;    Temporal resolution;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/7/072051/pdf
DOI  :  10.1088/1742-6596/635/7/072051

来源: IOP

【 摘 要 】

Laser-induced electron diffraction is a developing dynamical imaging technique that is already able to probe molecular dynamics at few-femtosecond temporal resolutions and has the potential to reach the sub-femtosecond level. Here we provide the recipe for the extension of the technique to polyatomic molecules and we demonstrate the method by extracting the structure of aligned and anti-aligned acetylene (C2H2). We show that multiple bond lengths can be simultaneously imaged at high accuracy including elusive hydrogen containing bonds. Our results open the door to the investigation of larger complex molecules and the realization of a true molecular movie.