Gaining Mechanistic Insight with Control Pulse Slicing: Application to the Dissociative Ionization of CH2 BrI

The Journal of Physical Chemistry. a
Xi XingHerschel Rabitz

Abstract

In quantum control experiments with shaped femtosecond laser pulses, adaptive feedback control is often used to identify pulse shapes that can optimally steer the quantum system toward the desired outcome. However, gaining mechanistic information can pose a challenge due to the varied structural features of the control pulses and/or the often complex nature of the associated simulations of the experiments. In this article, we introduce control pulse slicing (CPS) as an easy-to-implement experimental analysis tool that can be employed directly in the laboratory without the need for modeling, to gain mechanistic insights about control experiments, regardless of whether the pulse is optimal or chosen by other means. As an illustration, we apply CPS to dissociative ionization of CH2BrI with mass spectral detection, where two pulses with similar intensities are investigated, with each capable of distinctively controlling the ratio of Br+/CH2Br+. These two control pulses were, respectively, first identified with closed loop and open loop procedures, and then the multispecies experimental data was analyzed with CPS. By comparing the dynamical evolution of the observed multiple fragment ion yields upon slicing scans of the two distinct...Continue Reading

References

Dec 30, 1991·Physical Review Letters·T BaumertG Gerber
Mar 9, 1992·Physical Review Letters·R S Judson, H Rabitz
Jan 25, 2003·Science·Chantal DanielLudger Wöste
Aug 15, 2003·Nature·Ursula Keller
Aug 25, 2004·Physical Review Letters·Albrecht LindingerLudger Wöste
Jan 15, 2005·Journal of Magnetic Resonance·Navin KhanejaSteffen J Glaser
Oct 9, 2007·The Journal of Chemical Physics·Brett J PearsonThomas Weinacht
Apr 10, 2009·The Journal of Chemical Physics·Marija KoturSpiridoula Matsika
May 15, 1994·Optics Letters·C W HillegasW S Warren
May 1, 1995·Optics Letters·M M Wefers, K A Nelson
Sep 28, 2010·Physical Review Letters·Jens PetersenHerschel Rabitz
Sep 30, 2010·Physical Chemistry Chemical Physics : PCCP·Jesús González-VázquezTamás Rozgonyi
Aug 8, 2012·The Journal of Physical Chemistry. a·Dominik GeißlerThomas Weinacht
Sep 26, 2013·Physical Chemistry Chemical Physics : PCCP·Katharine Moore TibbettsHerschel Rabitz
Oct 15, 2013·The Journal of Chemical Physics·Katharine Moore TibbettsHerschel Rabitz
Jul 22, 2015·Physical Review Letters·Liat LevinZohar Amitay

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Citations

Oct 3, 2019·The Journal of Chemical Physics·O VoznyukE Wells
Aug 5, 2021·Analytical Chemistry·Shane L McPhersonKatharine Moore Tibbetts

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