Coherent control with shaped femtosecond laser pulses applied to ultracold molecules
Atomic Physics
2009-11-11 v2
Abstract
We report on coherent control of excitation processes of translationally ultracold rubidium dimers in a magneto-optical trap by using shaped femtosecond laser pulses. Evolution strategies are applied in a feedback loop in order to optimize the photoexcitation of the Rb2 molecules, which subsequently undergo ionization or fragmentation. A superior performance of the resulting pulses compared to unshaped pulses of the same pulse energy is obtained by distributing the energy among specific spectral components. The demonstration of coherent control to ultracold ensembles opens a path to actively influence fundamental photo-induced processes in molecular quantum gases.
Keywords
Cite
@article{arxiv.physics/0509056,
title = {Coherent control with shaped femtosecond laser pulses applied to ultracold molecules},
author = {Wenzel Salzmann and Ulrich Poschinger and Roland Wester and Matthias Weidemueller and Andrea Merli and Stefan M. Weber and Franziska Sauer and Mateusz Plewicki and Fabian Weise and Aldo Mirabal Esparza and Ludger Woeste and Albrecht Lindinger},
journal= {arXiv preprint arXiv:physics/0509056},
year = {2009}
}