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Article

Multidimensional Analysis of Time-Resolved Charged Particle Imaging Experiments

1
Departamento de Química Física (Unidad Asociada I+D+i al CSIC), Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
2
Instituto de Química Física Rocasolano, CSIC, C/Serrano 119, 28006 Madrid, Spain
3
Université de Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622 Villeurbanne, France
*
Author to whom correspondence should be addressed.
Appl. Sci. 2018, 8(8), 1227; https://doi.org/10.3390/app8081227
Received: 13 June 2018 / Revised: 20 July 2018 / Accepted: 23 July 2018 / Published: 26 July 2018
(This article belongs to the Special Issue Ultrafast Laser Pulses)
We present a tutorial to realize a multidimensional fitting procedure capable of extracting all the relevant information contained in a sequence of charged particle images acquired as a function of time in femtosecond pump–probe experiments. The images are reproduced using a 3D fitting method, which provides the velocity (or center-of-mass kinetic energy) and angular distributions contained in the images and their time evolution. A detailed example of the method is shown through the analysis of the time-resolved predissociation dynamics of CH3I on the B-band origin (Gitzinger et al., J. Chem. Phys.2010, 133, 234313). We show that the multidimensional approach is essential for the analysis of complex images that contain several overlapping contributions where reduced dimensionality analyses cannot provide a reliable description of the features present in the image sequence. This methodology can be generalized to many types of multidimensional data analysis.
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Keywords: femtochemistry; VMI (velocity map imaging); multidimensional analysis femtochemistry; VMI (velocity map imaging); multidimensional analysis
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MDPI and ACS Style

Loriot, V.; Bañares, L.; De Nalda, R. Multidimensional Analysis of Time-Resolved Charged Particle Imaging Experiments. Appl. Sci. 2018, 8, 1227. https://doi.org/10.3390/app8081227

AMA Style

Loriot V, Bañares L, De Nalda R. Multidimensional Analysis of Time-Resolved Charged Particle Imaging Experiments. Applied Sciences. 2018; 8(8):1227. https://doi.org/10.3390/app8081227

Chicago/Turabian Style

Loriot, Vincent, Luis Bañares, and Rebeca De Nalda. 2018. "Multidimensional Analysis of Time-Resolved Charged Particle Imaging Experiments" Applied Sciences 8, no. 8: 1227. https://doi.org/10.3390/app8081227

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