Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Mateusz Plewicki"'
Autor:
Mateusz Plewicki, Ludger Wöste, Stefan M. Weber, Franziska Sauer, Andrea Merli, Albrecht Lindinger
Publikováno v:
Journal of Modern Optics. 54:2659-2666
We present experimental results of a multi-objective evolutionary algorithm that controls the ionization of the NaK molecule and the fragmentation/ionization of potassium dimers. The two physically contradictive goals are dimer ionization and fragmen
Publikováno v:
Chemical Physics. 332:313-317
We present a new level of control in closed loop experiments by implementing a shaper setup which is capable of manipulating the phase, amplitude, and polarization of femtosecond laser pulses simultaneously and independently. As a test of this method
Publikováno v:
Applied Physics B. 86:259-263
We introduce a shaper setup which takes advantage of laser pulses passing through a spatial light modulator twice, thereby effectively utilizing a four-liquid crystal mask configuration. This approach grants control not only over the phase and polari
Autor:
Mateusz Plewicki, Ludger Wöste, Franziska Sauer, Andrea Merli, Stefan M. Weber, Albrecht Lindinger
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 180:256-261
We present two novel optimization methods by employing shaped fs-laser pulses in a closed feedback loop. The first describes control pulse cleaning where extraneous features were removed by applying genetic pressure on certain pulse components. The s
Autor:
Franziska Vetter, Albrecht Lindinger, Andrea Merli, Stefan M. Weber, Ludger Wöste, Mateusz Plewicki
Publikováno v:
Chemical Physics Letters. 413:315-320
We demonstrate coherent control of isotope selective fragmentation processes of potassium dimers into differing atomic isotopes using shaped fs-laser pulses. When applying evolution strategies in a feedback loop, optimizing 39 K + vs. 41 K + for diff
Autor:
Franziska Vetter, Stefan M. Weber, Andrea Merli, Albrecht Lindinger, Mateusz Plewicki, Ludger Wöste
Publikováno v:
The European Physical Journal D. 33:39-42
We present two novel types of parameterizations for optical control experiments, executed by pulse shaping and evolution strategies on the NaK system. The first is a time domain approach with a pulse parameterization with few, intuitive parameters su
Autor:
Albrecht Lindinger, C. Lupulescu, Franziska Vetter, Mateusz Plewicki, Stefan M. Weber, Ludger Wöste
Publikováno v:
Chemical Physics. 306:287-293
We present an optimization course analysis of two coherent control experiments optimizing the ion yield in NaK and the isotope ratio of 39,39K2/39,41K2 with shaped laser pulses. As most evolutionary algorithms converge first to the most relevant para
Autor:
C. Lupulescu, Stefan M. Weber, Franziska Vetter, Andrea Merli, Albrecht Lindinger, Ludger Wöste, Mateusz Plewicki
Publikováno v:
Chemical Physics Letters. 397:123-127
Selective optimization of different isotopomers in an ionization process with shaped fs-laser pulses is presented for 23Na39K/23Na41K. By employing evolution strategies in a closed feedback loop a considerably high enhancement by a total factor of ab
Autor:
Mateusz Plewicki, C. Lupulescu, Stefan M. Weber, Ludger Wöste, Andrea Merli, Albrecht Lindinger
Publikováno v:
Chemical Physics. 296:63-69
Frequency dependent closed loop optimization of fs pulse shapes is investigated for the NaK dimer. By controlling the photo-excited wave packet dynamics, the three-photon ionization of NaK is optimized. The obtained ion yield depending on the employe
Publikováno v:
SPIE Proceedings.
Multiple foci are created along the propagation direction of a laser beam using simultaneous spatial and temporal focusing of an ultrafast laser pulse in conjunction with parametric pulse shaping. The pulses are characterized with scanning SEA TADPOL