Time focus with velocity imaging of charged particles in coincidence: Application to photoionization of CO and N2O

Y. Hikosaka; J. H.D. Eland

doi:10.1016/S0301-0104(02)00592-X

Time focus with velocity imaging of charged particles in coincidence: Application to photoionization of CO and N₂O

Y. Hikosaka, J. H.D. Eland^*

^*Corresponding author for this work

Faculty of Liberal Arts and Sciences

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

11 Scopus citations

Abstract

A coincidence spectrometer combining time-focusing optics with velocity imaging has been developed to achieve high velocity resolution for both positive and negative particles. Positional broadening of particle images and temporal broadening of particle flight times caused by an extended source volume are effectively cancelled by the design of the electrostatic lenses. The performance of the new optics is demonstrated in photoionization of CO. Sample results are presented on dissociative photoionization from CO⁺(D²π) and N₂O⁺(C²Σ⁺), where molecular frame photoelectron angular distributions are obtained for the first time with vibrational resolution of both initial state and diatomic products.

Original language	English
Pages (from-to)	91-100
Number of pages	10
Journal	Chemical Physics
Volume	281
Issue number	1
DOIs	https://doi.org/10.1016/S0301-0104(02)00592-X
State	Published - 2002/07/15

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/S0301-0104(02)00592-X

Cite this

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title = "Time focus with velocity imaging of charged particles in coincidence: Application to photoionization of CO and N2O",

abstract = "A coincidence spectrometer combining time-focusing optics with velocity imaging has been developed to achieve high velocity resolution for both positive and negative particles. Positional broadening of particle images and temporal broadening of particle flight times caused by an extended source volume are effectively cancelled by the design of the electrostatic lenses. The performance of the new optics is demonstrated in photoionization of CO. Sample results are presented on dissociative photoionization from CO+(D2π) and N2O+(C2Σ+), where molecular frame photoelectron angular distributions are obtained for the first time with vibrational resolution of both initial state and diatomic products.",

author = "Y. Hikosaka and Eland, {J. H.D.}",

note = "Funding Information: The authors gratefully acknowledge the financial support of the EPSRC for this work. ",

year = "2002",

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doi = "10.1016/S0301-0104(02)00592-X",

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T2 - Application to photoionization of CO and N2O

AU - Hikosaka, Y.

AU - Eland, J. H.D.

N1 - Funding Information: The authors gratefully acknowledge the financial support of the EPSRC for this work.

PY - 2002/7/15

Y1 - 2002/7/15

N2 - A coincidence spectrometer combining time-focusing optics with velocity imaging has been developed to achieve high velocity resolution for both positive and negative particles. Positional broadening of particle images and temporal broadening of particle flight times caused by an extended source volume are effectively cancelled by the design of the electrostatic lenses. The performance of the new optics is demonstrated in photoionization of CO. Sample results are presented on dissociative photoionization from CO+(D2π) and N2O+(C2Σ+), where molecular frame photoelectron angular distributions are obtained for the first time with vibrational resolution of both initial state and diatomic products.

AB - A coincidence spectrometer combining time-focusing optics with velocity imaging has been developed to achieve high velocity resolution for both positive and negative particles. Positional broadening of particle images and temporal broadening of particle flight times caused by an extended source volume are effectively cancelled by the design of the electrostatic lenses. The performance of the new optics is demonstrated in photoionization of CO. Sample results are presented on dissociative photoionization from CO+(D2π) and N2O+(C2Σ+), where molecular frame photoelectron angular distributions are obtained for the first time with vibrational resolution of both initial state and diatomic products.

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