SFB 450:  Analysis and Control of Ultrafast Photoinduced Reactions

• Subject Area: Physics
• Term: from 1998 to 2010
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 5482481

In a tight cooperation between experiment and theory and by looking at a broad variety of molecular systems we seek a deeper insight in to photoinduced physico-chemical processes. In the centre of our interests are the following questions:
-- Which significance does coherence have in systems, which are not fully describable in all their degrees of freedom? The importance of coherence for a control of molecular dynamics should be worked out. The disappearance of coherence and its significance for molecular control must be evaluated.
-- Can local-modes specifically be exited?
-- How does the dynamical behaviour of a molecular ensemble correspond to the relating properties of a single molecule?
-- Which control scenarii are not suited for a particular system?
-- How sensitive does the obtained result of the control process depend upon fluctuations in the initial state upon temporal variations of the control fields?

• DFG Programme: Collaborative Research Centres
• International Connection: Israel

Completed projects

• A01 - Temporal Control of Ultrafast Chemical Processes in Molecules and Aggregates (Project Heads Lindinger, Albrecht ;  Siebert, Torsten ;  Wöste, Ludger H. )
• A02 - Ultrafast vibrational excitation and femtochemistry of molecular model systems in the gas phase (Project Heads Laarmann, Tim ;  Schulz, Claus-Peter )
• A03 - Wave Packets Optimized for Control of Photoreactions in Rare Gas Matrices (Project Head Schwentner, Nikolaus )
• A04 - Ultrafast photoinduced processes in DNA base clusters (Project Heads Hertel, Ingolf Volker ;  Schultz, Thomas )
• A5 - Ultrakurzzeitdynamik photostimulierter Oberflächenreaktionen: Analyse und Kontrolle (Project Heads Ekardt, Walter ;  Ertl, Gerhard ;  Frischkorn, Christian )
• A06 - Ultrafast Dynamics of Photostimulated Reactions at Surfaces: Analysis and Control (Project Heads Bovensiepen, Uwe ;  Frischkorn, Christian ;  Wolf, Martin )
• A07 - Kontrolle und Analyse von Dissoziationsreaktionen und chemischen Reaktionen in Übergangsmetallclustern (Project Heads Eberhardt, Wolfgang ;  Neeb, Matthias )
• B01 - Femtosecond Stimulated Raman Spectroscopy (FSRS) of photoreactions in the condensed phase with conical interection (Project Head Ernsting, Nikolaus P. )
• B02 - Ultrafast proton dynamics in the condensed phase studied by femtoseond vibrational spectroscopy (Project Heads Elsässer, Thomas ;  Nibbering, Erik T.J. )
• B3 - Ultrakurzzeitdynamik von Photoreaktionen in nativer und synthetischer Proteinumgebung (Project Heads Diller, Rolf ;  Stehlik, Dietmar )
• B4 - Ultraschnelle Steuerung von Dissoziation und Desorption in Isolatorkristallen und Metallclustern (Project Heads Matthias, Eckart ;  Reichling, Michael )
• B05 - Analyse und Kontrolle ultraschneller Photo-Reaktionen großer organischer Moleküle auf oxidischen Halbleitern (Project Heads Eichberger, Rainer ;  Willig, Frank )
• B6 - Analyse kohärent gekoppelter Amid Zustände in Peptiden und Proteinen (Project Head Hamm, Peter )
• B07 - Photoinduced conformational change in gas-phase biomolecules (Project Heads von Helden, Gert ;  Meijer, Gerardus )
• B09 - Analysis and control of structural changes in biological relevant sytems in the condensed phase (Project Head Heyne, Karsten )
• B10 - Analysis and control of the photon-induced dynamics of molecular systems by short-pulse ultraviolet and vacuum ultraviolet radiation (Project Heads Plenge, Jürgen ;  Rühl, Eckart )
• C01 - Theory for the control of chemical reactions by ultra-short laser pulses (Project Heads Gerber, Robert Benny ;  Manz, Jörn )
• C02 - Theory for optical control of time dependent Processes in Molecules, Clusters and their Reactions (Project Heads Bonacic-Koutecky, Vlasta ;  Jortner, Joshua )
• C03 - Control of Ultrafast Processes in Open Molecular Systems (Project Head May, Volkhard )
• C4 - Theorie zur Kontrolle photoinduzierter Ultrakurzzeitphänome in kleinen Clustern und im Festkörper (Project Heads Bennemann, Karl-Heinz ;  Garcia, Martin Ezequiel )
• C05 - Theory for dynamics and control of photoinduced processes in large molecular systems (Project Heads Lasser, Caroline ;  Schmidt, Burkhard ;  Schütte, Christof )
• C06 - Analysis and control of Rydberg states in alkaline earth atoms as well as alkali dimers and trimers (Project Heads Gross, Eberhard K. U. ;  Saenz, Alejandro )
• C07 - Optical Control and Spectroscopy of dissipative Processes at Surfaces (Project Heads Nest, Mathias ;  Saalfrank, Peter )
• C08 - Control of light by ultracold matter (Project Heads Koch, Christiane ;  Kosloff, Ronnie )
• C09 - Quantum Dynamics and Control of Elementary Processes in Molecules of Biological Relevance (Project Heads González, Leticia ;  Kühn, Oliver )
• V - Verwaltung des SFB (Project Head Abt, Peter )
• YE1 - Ultraschnelle Vibrationsanregung und Femtochemie an molekularen Modellsystemen in der Gasphase (Project Heads Hertel, Ingolf Volker ;  Korn, Georg )
• YE2 - Steuerung ultraschneller photoinduzierter chemischer Elementarprozesse in freien Metall-Molekülkomplexen und Molekülclustern (Project Heads Radloff, Wolfgang ;  Schreiber, Elmar ;  Schulz, Claus-Peter )
• YE3 - Wellenpaketdynamik des innermolekularen Proton-Transfers in isolierten großen Molekülen im S1-Zustand (Project Head Ernsting, Nikolaus P. )
• YE4 - Femtosekunden-Schwingungsspektroskopie zur ultraschnellen Dynamik von Protonen in der kondensierten Phase (Project Head Elsässer, Thomas )
• YE5 - Theorie zur optischen Kontrolle zeitabhängiger Prozesse in Molekülen, Clustern und deren Reaktionen (Project Head Bonacic-Koutecky, Vlasta )
• YE6 - Theorie der Kontrolle ultraschneller Prozesse in offenen Molekularsystemen (Project Heads May, Volkhard ;  Shapiro, Moshe )
• Ö - Public Scientific Relations and Education (Project Heads Nordmeier, Volkhard ;  Schütte, Christof ;  Wöste, Ludger H. )

• Applicant Institution: Freie Universität Berlin
• Participating Institution: The Hebrew University of Jerusalem ; Department of Physical Chemistry & ; The Fritz-Haber Center for Molecular Dynamics; Fritz-Haber-Institut der Max-Planck-Gesellschaft (FHI); Helmholtz-Zentrum Berlin für Materialien und Energie; Gemeinsame Forschungsgruppe SyncLab; Helmholtz-Zentrum Berlin für Materialien und Energie; Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie; im Forschungsverbund Berlin e.V.
• Participating University: Humboldt-Universität zu Berlin; Tel Aviv University; Universität Potsdam
• Spokesperson: Professor Dr. Ludger H. Wöste