Simultaneous 3D coincidence imaging of cationic, anionic, and neutral photo-fragments

Abhishek Shahi; Yishai Albeck; Daniel Strasser

doi:10.1063/1.5004523

Simultaneous 3D coincidence imaging of cationic, anionic, and neutral photo-fragments

Abhishek Shahi, Yishai Albeck, Daniel Strasser

Institute of Chemistry

The Hebrew University of Jerusalem

Research output: Contribution to journal › Article › peer-review

Abstract

We present the design and simulations of a 3D coincidence imaging spectrometer for fast beam photofragmentation experiments. Coincidence detection of cationic, neutral, and anionic fragments involves spectrometer aberrations that are successfully corrected by an analytical model combined with exact numerical simulations. The spectrometer performance is experimentally demonstrated by characterization of four different channels of intense 800 nm pulse interaction with F2-: F^- + F photodissociation, F + F dissociative photodetachment, F⁺ + F dissociative ionization, and F⁺ + F⁺ coulomb explosion. Improved measurement of F2- photodissociation with a 400 nm photon allows a better determination of the F2- anion dissociation energy, 1.256 ± 0.005 eV.

Original language	English
Article number	013303
Journal	Review of Scientific Instruments
Volume	89
Issue number	1
DOIs	https://doi.org/10.1063/1.5004523
State	Published - Jan 2018

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.5004523

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title = "Simultaneous 3D coincidence imaging of cationic, anionic, and neutral photo-fragments",

abstract = "We present the design and simulations of a 3D coincidence imaging spectrometer for fast beam photofragmentation experiments. Coincidence detection of cationic, neutral, and anionic fragments involves spectrometer aberrations that are successfully corrected by an analytical model combined with exact numerical simulations. The spectrometer performance is experimentally demonstrated by characterization of four different channels of intense 800 nm pulse interaction with F2-: F- + F photodissociation, F + F dissociative photodetachment, F+ + F dissociative ionization, and F+ + F+ coulomb explosion. Improved measurement of F2- photodissociation with a 400 nm photon allows a better determination of the F2- anion dissociation energy, 1.256 ± 0.005 eV.",

author = "Abhishek Shahi and Yishai Albeck and Daniel Strasser",

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doi = "10.1063/1.5004523",

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AU - Strasser, Daniel

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N2 - We present the design and simulations of a 3D coincidence imaging spectrometer for fast beam photofragmentation experiments. Coincidence detection of cationic, neutral, and anionic fragments involves spectrometer aberrations that are successfully corrected by an analytical model combined with exact numerical simulations. The spectrometer performance is experimentally demonstrated by characterization of four different channels of intense 800 nm pulse interaction with F2-: F- + F photodissociation, F + F dissociative photodetachment, F+ + F dissociative ionization, and F+ + F+ coulomb explosion. Improved measurement of F2- photodissociation with a 400 nm photon allows a better determination of the F2- anion dissociation energy, 1.256 ± 0.005 eV.

AB - We present the design and simulations of a 3D coincidence imaging spectrometer for fast beam photofragmentation experiments. Coincidence detection of cationic, neutral, and anionic fragments involves spectrometer aberrations that are successfully corrected by an analytical model combined with exact numerical simulations. The spectrometer performance is experimentally demonstrated by characterization of four different channels of intense 800 nm pulse interaction with F2-: F- + F photodissociation, F + F dissociative photodetachment, F+ + F dissociative ionization, and F+ + F+ coulomb explosion. Improved measurement of F2- photodissociation with a 400 nm photon allows a better determination of the F2- anion dissociation energy, 1.256 ± 0.005 eV.

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JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

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ER -

Simultaneous 3D coincidence imaging of cationic, anionic, and neutral photo-fragments

Abstract

All Science Journal Classification (ASJC) codes

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