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Optimal control methods applied on the ionization processes of alkali dimers

Paper ID Volume ID Publish Year Pages File Format Full-Text
29190 44130 2006 6 PDF Available
Title
Optimal control methods applied on the ionization processes of alkali dimers
Abstract

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 second reports parametric optimization with intuitive parameters such as subpulse distances, chirps, phase differences, and spectral peak patterns. These methods were conducted on the ionization process of alkali dimers produced in a molecular beam and improved the performances of the optimized pulses compared with short pulses at the same pulse energy. Moreover, we attempt to analyze the obtained pulse shapes regarding the underlying optimized processes. Further investigations concerning isotope selective fragmentation and optimal control of excitation processes of ultracold rubidium dimers in a magneto-optical trap (MOT) are also shown.

Keywords
33.80.Rv; 28.60.+s; 82.53.−− kCoherent control; Dimers; Parametrization
First Page Preview
Optimal control methods applied on the ionization processes of alkali dimers
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 180, Issue 3, 25 June 2006, Pages 256–261
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering