Spectral dependence of photoemission in multiphoton ionization of NO2 by femtosecond pulses in the 375–430 nm range
Abstract
In this paper, we investigate the multiphoton ionization of NO2 using tunable (430–375 nm) femtosecond pulses and photoelectron–photoion coincidence momentum spectroscopy. In order to understand the complex electronic and nuclear photodynamics at play following absorption of three to five photons, we also report extended photoionization calculations using correlated targets and coupled channels. Exploring the multiphoton dissociative ionization (MPDI) and multiphoton ionization (MPI) processes over such a broad energy range enables us to lend further support to our work carried out around 400 nm of a femtosecond laser [S. Marggi Poullain et al., J. Phys. B: At., Mol. Opt. Phys., 2014, 47, 124024]. Two excitation energy regions are identified and discussed in terms of the proposed reaction pathways, highlighting the significant role of Rydberg states, such as the [R*(6a1)-1, 3pσ] Rydberg state, in the NO2 multiphoton excitation and photoionization. These new results support our previous assumption that different bent and linear geometries of the NO2+(X1Σg) ionic state contribute to the MPDI and MPI, consistent with the reported calculations which reveal an important vibronic coupling characterizing the photoemission. Finally, remarkably, the strong anisotropy of the recoil frame photoelectron angular distribution (RFPAD) previously observed at 400 nm appears as a fingerprint across themore »
- Authors:
-
- Univ. of Paris-Sud, Orsay (France). Inst. of Molecular Sciences of Orsay (ISMO); Complutense Univ. of Madrid (Spain). Dept. of Physical Chemistry. Faculty of Chemical Sciences
- Univ. of Paris-Sud, Orsay (France). Inst. of Molecular Sciences of Orsay (ISMO)
- Alternative Energies and Atomic Energy Commission (CEA), Saclay (France). Interactions, Dynamics and Lasers Lab. (LIDYL)
- National Centre for Scientific Research (CNRS) and Pierre and Marie Curie Univ, Paris (France). Lab. of Physical Chemistry - Matter and Radiation (LCPMR)
- Texas A & M Univ., College Station, TX (United States). Dept. of Chemistry
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Robert A. Welch Foundation (United States); National Research Agency (ANR) (France)
- OSTI Identifier:
- 1461114
- Grant/Contract Number:
- SC0012198; A-1020; ANR-10-LABX-0039-PALM
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Chemistry Chemical Physics. PCCP
- Additional Journal Information:
- Journal Volume: 19; Journal Issue: 33; Journal ID: ISSN 1463-9076
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Poullain, S. Marggi, Cireasa, R., Cornaggia, C., Simon, M., Marin, T., Guillemin, R., Houver, J. C., Lucchese, R. R., and Dowek, D. Spectral dependence of photoemission in multiphoton ionization of NO2 by femtosecond pulses in the 375–430 nm range. United States: N. p., 2017.
Web. doi:10.1039/c7cp02057k.
Poullain, S. Marggi, Cireasa, R., Cornaggia, C., Simon, M., Marin, T., Guillemin, R., Houver, J. C., Lucchese, R. R., & Dowek, D. Spectral dependence of photoemission in multiphoton ionization of NO2 by femtosecond pulses in the 375–430 nm range. United States. https://doi.org/10.1039/c7cp02057k
Poullain, S. Marggi, Cireasa, R., Cornaggia, C., Simon, M., Marin, T., Guillemin, R., Houver, J. C., Lucchese, R. R., and Dowek, D. Thu .
"Spectral dependence of photoemission in multiphoton ionization of NO2 by femtosecond pulses in the 375–430 nm range". United States. https://doi.org/10.1039/c7cp02057k. https://www.osti.gov/servlets/purl/1461114.
@article{osti_1461114,
title = {Spectral dependence of photoemission in multiphoton ionization of NO2 by femtosecond pulses in the 375–430 nm range},
author = {Poullain, S. Marggi and Cireasa, R. and Cornaggia, C. and Simon, M. and Marin, T. and Guillemin, R. and Houver, J. C. and Lucchese, R. R. and Dowek, D.},
abstractNote = {In this paper, we investigate the multiphoton ionization of NO2 using tunable (430–375 nm) femtosecond pulses and photoelectron–photoion coincidence momentum spectroscopy. In order to understand the complex electronic and nuclear photodynamics at play following absorption of three to five photons, we also report extended photoionization calculations using correlated targets and coupled channels. Exploring the multiphoton dissociative ionization (MPDI) and multiphoton ionization (MPI) processes over such a broad energy range enables us to lend further support to our work carried out around 400 nm of a femtosecond laser [S. Marggi Poullain et al., J. Phys. B: At., Mol. Opt. Phys., 2014, 47, 124024]. Two excitation energy regions are identified and discussed in terms of the proposed reaction pathways, highlighting the significant role of Rydberg states, such as the [R*(6a1)-1, 3pσ] Rydberg state, in the NO2 multiphoton excitation and photoionization. These new results support our previous assumption that different bent and linear geometries of the NO2+(X1Σg) ionic state contribute to the MPDI and MPI, consistent with the reported calculations which reveal an important vibronic coupling characterizing the photoemission. Finally, remarkably, the strong anisotropy of the recoil frame photoelectron angular distribution (RFPAD) previously observed at 400 nm appears as a fingerprint across the whole explored photon energy range.},
doi = {10.1039/c7cp02057k},
journal = {Physical Chemistry Chemical Physics. PCCP},
number = 33,
volume = 19,
place = {United States},
year = {Thu Jul 27 00:00:00 EDT 2017},
month = {Thu Jul 27 00:00:00 EDT 2017}
}
Web of Science
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Works referencing / citing this record:
High resolution vibronic state-specific dissociation of NO 2 + in the 10.0–15.5 eV energy range by synchrotron double imaging photoelectron photoion coincidence
journal, January 2020
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