Objective The subject of the thesis work concerns the study of non-linear propagation of ultra-short (50 fs) very intense (l0 power 12 W/cm2) optical pulses through transparent non-linear media such as air, glass and other materials. In a first step, the phase profile of the optical pulse will be determined experimentally at various locations using a newly developed method ( 1 ) . The experimental results will be confronted to numerical simulations using the 3-d non-linear Schroedinger equation, to be developed. After the numerical code is fully validated, I will explore new situations where quasi-stable 'light-bullets' are predicted (self-guiding effects). Experiments testing the numerical analysis will be performed with a Terrawatt Ti:Sapphire scillator-amplifier system available at the L.O.A. Fields of science engineering and technologymaterials engineeringnatural sciencesmathematicsapplied mathematicsnumerical analysisnatural sciencesphysical sciencesopticslaser physics Programme(s) FP4-TMR - Specific research and technological development programme in the field of the training and mobility of researchers, 1994-1998 Topic(s) 0302 - Post-doctoral research training grants TP04 - Optics Call for proposal Data not available Funding Scheme RGI - Research grants (individual fellowships) Coordinator Ecole Polytechnique Address 91120 Palaiseau France See on map EU contribution € 0,00 Participants (1) Sort alphabetically Sort by EU Contribution Expand all Collapse all Not available Germany EU contribution € 0,00 Address See on map