1. Electronic Relaxation Processes of Transition Metal Atoms in Helium Nanodroplets
Andreas Kautsch, Institute of Experimental Physics
ISMS, 06/09/2014

2. Motivation Helium Nanodroplets (HeN) Chemical reactions in HeN
Cold matrix (0.4 K)
Confinement: Surface / Center
Low perturbation
Chemical reactions in HeN
Reaction barriers
Photoinduced triggering

3. Experimental Setup
TNozzle ≈ K  – 1800 He per droplet Cr source: T ~ 1900 K
pNozzle = 50 bar

4. Cr in HeN: Excitation Spectrum
~400 cm-1
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: /jp

5. Dispersed Fluorescence
Droplet mediated relaxation between different multiplicities
Unequal level population
Ejection from droplet
A. Kautsch, M. Koch, and W. E. Ernst: J. Phys. Chem. A, 117 (2013) 9621

6. Dynamics - Visualized
A. Kautsch, M. Koch, and W. E. Ernst: J. Phys. Chem. A, 117 (2013) 9621

7. Spatial Separation & Recombination

8. a5S a7S Unpublished work removed
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: /jp
S. J. Riley, E. K. Parks, L. G. Pobo, and S. Wexler: JCP 79 (1983) 2577

9. Cr2 Photoionization Spectra
Unpublished work removed
A. Kautsch, M. Koch, and W. E. Ernst: submitted (2014)

10. Photoinduced Dissociation & Photoinduced Recombination

11. Summary

12. Outlook

13. Thank you! Friedrich Lindebner, Markus Koch, Wolfgang E. Ernst
jahnteller2014.tugraz.at
Grant N20
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: /jp
J. V. Pototschnig, M. Ratschek, A. W. Hauser, and W. E. Ernst. PCCP 16 (2014)