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- Slides: 13
www. tugraz. at W I S S E N T E C H N I K L E I D E N S C H A F T Electronic Relaxation Processes of Transition Metal Atoms in Helium Nanodroplets Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014 Andreas Kautsch, Institute of Experimental Physics www. tugraz. at ISMS, 06/09/2014 u
www. tugraz. at Motivation q Helium Nanodroplets (He. N) q Cold matrix (0. 4 K) q Confinement: Surface / Center q Low perturbation q Chemical reactions in He. N q Reaction barriers q Photoinduced triggering Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014
www. tugraz. at Experimental Setup TNozzle ≈ 14 - 21 K 6300 – 1800 He per droplet p. Nozzle = 50 bar Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014 Cr source: T ~ 1900 K
www. tugraz. at Cr in He. N: Excitation Spectrum ~400 cm-1 A. Kautsch, M. Koch, and W. E. Ernst: J. Phys. Chem. A, 117 (2013) 9621 M. Ratschek, J. V. Pototschnig, A. Hauser, and W. E. Ernst: JPC A in press (2014) DOI: 10. 1021/jp 5034036 Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014
www. tugraz. at Dispersed Fluorescence q Droplet mediated relaxation between different multiplicities q Unequal level population q Ejection from droplet A. Kautsch, M. Koch, and W. E. Ernst: J. Phys. Chem. A, 117 (2013) 9621 Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014
www. tugraz. at Dynamics - Visualized A. Kautsch, M. Koch, and W. E. Ernst: J. Phys. Chem. A, 117 (2013) 9621 Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014
www. tugraz. at Spatial Separation & Recombination Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014
www. tugraz. at a 5 S Unpublished work removed a 7 S A. Kautsch, M. Koch, and W. E. Ernst: submitted (2014) M. Ratschek, J. V. Pototschnig, A. Hauser, and W. E. Ernst: JPC A in press (2014) DOI: 10. 1021/jp 5034036 S. J. Riley, E. K. Parks, L. G. Pobo, and S. Wexler: JCP 79 (1983) 2577 Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014
www. tugraz. at Cr 2 Photoionization Spectra Unpublished work removed A. Kautsch, M. Koch, and W. E. Ernst: submitted (2014) Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014
www. tugraz. at Photoinduced Dissociation & Photoinduced Recombination Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014
www. tugraz. at Summary Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014
www. tugraz. at Outlook Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014
www. tugraz. at Thank you! Friedrich Lindebner, Markus Koch, Wolfgang E. Ernst jahnteller 2014. tugraz. at Grant 22962 -N 20 A. Kautsch, M. Koch, and W. E. Ernst: J. Phys. Chem. A, 117 (2013) 9621 Kautsch, M. Koch, and W. E. Ernst: submitted (2014) M. Ratschek, J. V. Pototschnig, A. Hauser, and W. E. Ernst: JPC A in press (2014) DOI: 10. 1021/jp 5034036 J. V. Pototschnig, M. Ratschek, A. W. Hauser, and W. E. Ernst. PCCP 16 (2014) 9469 -9478 Andreas Kautsch, Institute of Experimental Physics ISMS, 06/09/2014