Objective In this work pictures of the highest occupied orbital of changing molecular states will be taken using the molecular orbital tomography technique. This technique is based on the harmonic radiation emitted by the aligned sample molecules interacting with a strong IR-laser field. From amplitude, polarization and relative phases of the harmonic radiation the molecular orbital involved in the process can be reconstructed. The molecular orbital tomography has an intrinsic time resolution of below one femtosecond, which allows resolving very fast nuclear and electronic dynamics. For the first time, two detection schemes, one by two color photoionization and one by high harmonic interferometry will be combined to measure the complete phase map without using any assumptions for the phase relations between different molecular alignments or different harmonics. With this optimized detection scheme, the changes of a molecular orbital during a chemical reaction will be investigated. Two different reactions will be investigated during this work: the photodissociation of N2O and the photoisomerization of vinylidene (H2CC) to acetylene (HCCH). In this processes the initial molecular state is not inversion symmetric, therefore the typical used molecular alignment technique is not sufficient, it can not select between the two possible molecular orientations N2O or ON2, a much more complicated molecular orientation schemes will be used instead. Fields of science engineering and technologymaterials engineeringcolorsnatural scienceschemical sciencesorganic chemistryaliphatic compounds Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) FP7-PEOPLE-2010-IEF - Marie-Curie Action: "Intra-European fellowships for career development" Call for proposal FP7-PEOPLE-2010-IEF See other projects for this call Funding Scheme MC-IEF - Intra-European Fellowships (IEF) Coordinator COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES Address Rue leblanc 25 75015 Paris France See on map Region Ile-de-France Ile-de-France Paris Activity type Research Organisations Administrative Contact Jean-Christophe Coste (Mr.) Links Contact the organisation Opens in new window Website Opens in new window EU contribution No data
