Experimental observation of the vibrational wavefunction of 4He2, 4He3 and 4He23He using strong laser-fields

28th International Conference on Photonic, Electronic and Atomic Collisions

Voigtsberger, J.^1 ; Becht, J.^1 ; Neumann, N.^1 ; Sturm, F.^1,2 ; Kunitski, M.^1 ; Kalinin, A.^1 ; Wu, J.^1,3 ; Zeller, S.^1 ; Schöffler, M.^1 ; Schöllkopf, W.^4 ; Bressanini, D.^5 ; Czasch, A.^1 ; Schmidt, L.Ph.H.^1 ; Grisenti, R.^1 ; Jahnke, T.^1 ; Dörner, R.^1

Goethe Universität Frankfurt A.M., Institut für Kernphysik, Frankfurt, Germany^1

Lawrence Berkeley National Laboratory, Chemical Sciences Division, Berkeley, United States^2

East China Normal University, State Key Lab of Precision Spectroscopy, Shanghai, China^3

Fritz-Haber-Institut der Max-Planck-Gesellschaft, Dep. of Mol. Phys., Atom and Molecule Optics, Berlin, Germany^4

University of Insubria, Department of Chemical and Environmental Sciences, Corno, Italy^5

关键词: Different mass;    Helium gas;    Ionic fragments;    Low temperatures;    Mass-selected clusters;    Small clusters;    Strong laser field;    Supersonic gas jet;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/13/132024/pdf
DOI  :  10.1088/1742-6596/488/13/132024

来源: IOP

【 摘 要 】

Helium gas is being expanded through a pre-cooled 5 μm nozzle in a supersonic gas jet at low temperatures. Containing small clusters this gas jet passes a transmission diffraction grating, separating clusters of different masses. This mass selected cluster beam is ionized using a Ti:Sa Laser. The Coulomb exploding ionic fragments are measured with the COLTRIMS technique, giving direct access to the square of the vibrational wavefunction of of4He2,4He3and4He23He.