High-resolution Fourier-transform extreme ultraviolet photoabsorption spectroscopy of 14N 15N

A. N. Heays; G. D. Dickenson; E. J. Salumbides; N. De Oliveira; D. Joyeux; L. Nahon; B. R. Lewis; W. Ubachs

doi:10.1063/1.3672165

High-resolution Fourier-transform extreme ultraviolet photoabsorption spectroscopy of ¹⁴N ¹⁵N

A. N. Heays^*, G. D. Dickenson, E. J. Salumbides, N. De Oliveira, D. Joyeux, L. Nahon, B. R. Lewis, W. Ubachs

^*Corresponding author for this work

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

34 Citations (Scopus)

Abstract

The first comprehensive high-resolution photoabsorption spectrum of ¹⁴N ¹⁵N has been recorded using the Fourier-transform spectrometer attached to the Desirs beamline at the Soleil synchrotron. Observations are made in the extreme ultraviolet and span 100000-109000cm ^-1 (100-91.7nm). The observed absorption lines have been assigned to 25 bands and reduced to a set of transition energies, f values, and linewidths. This analysis has verified the predictions of a theoretical model of N ₂ that simulates its photoabsorption and photodissociation cross section by solution of an isotopomer independent formulation of the coupled-channel Schrödinger equation. The mass dependence of predissociation linewidths and oscillator strengths is clearly evident and many local perturbations of transition energies, strengths, and widths within individual rotational series have been observed.

Original language	English
Article number	244301
Journal	Journal of Chemical Physics
Volume	135
Issue number	24
DOIs	https://doi.org/10.1063/1.3672165
Publication status	Published - 28 Dec 2011

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title = "High-resolution Fourier-transform extreme ultraviolet photoabsorption spectroscopy of 14N 15N",

abstract = "The first comprehensive high-resolution photoabsorption spectrum of 14N 15N has been recorded using the Fourier-transform spectrometer attached to the Desirs beamline at the Soleil synchrotron. Observations are made in the extreme ultraviolet and span 100000-109000cm -1 (100-91.7nm). The observed absorption lines have been assigned to 25 bands and reduced to a set of transition energies, f values, and linewidths. This analysis has verified the predictions of a theoretical model of N 2 that simulates its photoabsorption and photodissociation cross section by solution of an isotopomer independent formulation of the coupled-channel Schr{\"o}dinger equation. The mass dependence of predissociation linewidths and oscillator strengths is clearly evident and many local perturbations of transition energies, strengths, and widths within individual rotational series have been observed.",

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T1 - High-resolution Fourier-transform extreme ultraviolet photoabsorption spectroscopy of 14N 15N

AU - Heays, A. N.

AU - Dickenson, G. D.

AU - Salumbides, E. J.

AU - De Oliveira, N.

AU - Joyeux, D.

AU - Nahon, L.

AU - Lewis, B. R.

AU - Ubachs, W.

PY - 2011/12/28

Y1 - 2011/12/28

N2 - The first comprehensive high-resolution photoabsorption spectrum of 14N 15N has been recorded using the Fourier-transform spectrometer attached to the Desirs beamline at the Soleil synchrotron. Observations are made in the extreme ultraviolet and span 100000-109000cm -1 (100-91.7nm). The observed absorption lines have been assigned to 25 bands and reduced to a set of transition energies, f values, and linewidths. This analysis has verified the predictions of a theoretical model of N 2 that simulates its photoabsorption and photodissociation cross section by solution of an isotopomer independent formulation of the coupled-channel Schrödinger equation. The mass dependence of predissociation linewidths and oscillator strengths is clearly evident and many local perturbations of transition energies, strengths, and widths within individual rotational series have been observed.

AB - The first comprehensive high-resolution photoabsorption spectrum of 14N 15N has been recorded using the Fourier-transform spectrometer attached to the Desirs beamline at the Soleil synchrotron. Observations are made in the extreme ultraviolet and span 100000-109000cm -1 (100-91.7nm). The observed absorption lines have been assigned to 25 bands and reduced to a set of transition energies, f values, and linewidths. This analysis has verified the predictions of a theoretical model of N 2 that simulates its photoabsorption and photodissociation cross section by solution of an isotopomer independent formulation of the coupled-channel Schrödinger equation. The mass dependence of predissociation linewidths and oscillator strengths is clearly evident and many local perturbations of transition energies, strengths, and widths within individual rotational series have been observed.

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DO - 10.1063/1.3672165

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JF - Journal of Chemical Physics

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High-resolution Fourier-transform extreme ultraviolet photoabsorption spectroscopy of ¹⁴N ¹⁵N

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