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Title: A new electron-ion coincidence 3D momentum-imaging method and its application in probing strong field dynamics of 2-phenylethyl-N, N-dimethylamine

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4981526· OSTI ID:1465981

In this paper, we report the development of a new three-dimensional (3D) momentum-imaging setup based on conventional velocity map imaging to achieve the coincidence measurement of photoelectrons and photo-ions. This setup uses only one imaging detector (microchannel plates (MCP)/phosphor screen) but the voltages on electrodes are pulsed to push both electrons and ions toward the same detector. The ion-electron coincidence is achieved using two cameras to capture images of ions and electrons separately. The time-of-flight of ions and electrons are read out from MCP using a digitizer. We demonstrate this new system by studying the dissociative single and double ionization of PENNA (2-phenylethyl-N,N-dimethylamine). Finally, we further show that the camera-based 3D imaging system can operate at 10 kHz repetition rate.

Research Organization:
Wayne State Univ., Detroit, MI (United States); Univ. of Liege, (Belgium)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Fund for Scientific Research (F.R.S.-FNRS) (Belgium)
Grant/Contract Number:
SC0012628; 2.5020.11
OSTI ID:
1465981
Alternate ID(s):
OSTI ID: 1361835
Journal Information:
Journal of Chemical Physics, Vol. 147, Issue 1; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (32)

Observation of Site-Specific Electron Emission in the Decay of Superexcited O 2 journal December 1997
Control of Local Ionization and Charge Transfer in the Bifunctional Molecule 2-Phenylethyl- N , N -dimethylamine Using Rydberg Fingerprint Spectroscopy journal March 2005
Ion dissociation dynamics and thermochemistry by photoelectron photoion coincidence (PEPICO) spectroscopy journal December 2000
Communication: Time- and space-sliced velocity map electron imaging journal December 2014
A photoelectron-photoion coincidence imaging apparatus for femtosecond time-resolved molecular dynamics with electron time-of-flight resolution of σ=18ps and energy resolution ΔE∕E=3.5% journal June 2008
State-resolved three-dimensional electron-momentum correlation in nonsequential double ionization of benzene journal March 2016
Femtosecond Coincidence Imaging of Multichannel Multiphoton Dynamics journal March 2004
Direct current slice imaging journal April 2003
Velocity map photoelectron-photoion coincidence imaging on a single detector journal September 2012
K-shell photoionization of CO and N 2 : is there a link between the photoelectron angular distribution and the molecular decay dynamics? journal September 2001
A photoelectron-photoion coincidence spectrometer for the study of translational energy release distributions journal November 1979
Nuclear spatial delocalization silences electron density oscillations in 2-phenyl-ethyl-amine (PEA) and 2-phenylethyl-N,N-dimethylamine (PENNA) cations journal March 2016
Femtosecond time-resolved photoelectron–photoion coincidence imaging studies of dissociation dynamics journal July 1999
Femtosecond Dynamics after Ionization:  2-Phenylethyl- N , N -dimethylamine as a Model System for Nonresonant Downhill Charge Transfer in Peptides journal September 2005
Nuclear Motion Driven Ultrafast Photodissociative Charge Transfer of the PENNA Cation: An Experimental and Computational Study journal February 2017
Dissociative Energy Flow, Vibrational Energy Redistribution, and Conformeric Structural Dynamics in Bifunctional Amine Model Systems journal October 2010
Velocity map imaging of ions and electrons using electrostatic lenses: Application in photoelectron and photofragment ion imaging of molecular oxygen journal September 1997
Coincidence ion imaging with a fast frame camera journal December 2014
A velocity map imaging spectrometer for electron–ion and ion–ion coincidence experiments with synchrotron radiation journal August 2007
Ultrafast charge migration in 2-phenylethyl-N,N-dimethylamine journal January 2008
Ion–electron velocity vector correlations in dissociative photoionization of simple molecules using electrostatic lenses journal April 2002
Photoelectron-photoion coincidence spectroscopy journal February 1972
Improved sliced velocity map imaging apparatus optimized for H photofragments journal April 2013
Charge migration in the bifunctional PENNA cation induced and probed by ultrafast ionization: a dynamical study journal June 2014
Note: An improved 3D imaging system for electron-electron coincidence measurements journal September 2015
Self‐consistent molecular orbital methods. XXIII. A polarization‐type basis set for second‐row elements journal October 1982
Local Ionization in 2-Phenylethyl- N , N -dimethylamine:  Charge Transfer and Dissociation Directly after Ionization journal April 2003
Suppression of hot electrons in threshold photoelectron photoion coincidence spectroscopy using velocity focusing optics journal August 2003
Charge migration following ionization in systems with chromophore-donor and amine-acceptor sites journal September 2008
Control of electronic dynamics visualized by angularly resolved photoelectron spectra: A dynamical simulation with an IR pump and XUV attosecond-pulse-train probe journal February 2014
Long-range corrected hybrid density functionals with damped atom–atom dispersion corrections journal January 2008
An Antifungal Polycyclic Tetramate Macrolactam, Heat-Stable Antifungal Factor (HSAF), Is a Novel Oxidative Stress Modulator in Lysobacter enzymogenes journal April 2021

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