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Visible transitions from ground state${\rm{H}}_{\rm{3}}^{\rm{ + }}$measured with high-sensitivity ac...

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Journal Title: Philosophical Transactions: Mathematical, Physical and Engineering Sciences
Authors and Corporations: Berg, Max, Wolf, Andreas, Petrignani, Annemieke
In: Philosophical Transactions: Mathematical, Physical and Engineering Sciences, 370, 2012, 1978, p. 5028-5040
Type of Resource: E-Article
Language: English
published:
The Royal Society
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rft.atitle Visible transitions from ground state${\rm{H}}_{\rm{3}}^{\rm{ + }}$measured with high-sensitivity action spectroscopy
rft.epage 5040
rft.genre article
rft.issn 1364-503X
rft.issue 1978
rft.jtitle Philosophical Transactions: Mathematical, Physical and Engineering Sciences
rft.tpages 12
rft.pages 5028-5040
rft.pub The Royal Society
rft.date 2012-11-13
x.date 2012-11-13T00:00:00Z
rft.spage 5028
rft.volume 370
abstract <p>We report on the recent observation of new spectral lines of cold ${\rm{H}}_{\rm{3}}^{\rm{ + }}$ ions lying well in the visible spectral region. Transitions from the two lowest ro-vibrational levels to final levels up to 16 700 cm⁻¹, almost half way to the dissociation limit, have been measured, involving up to eight vibrational quanta. The observed transitions are more than six orders of magnitude less intense than the $v_2^1$ fundamental band and yet another order of magnitude weaker than reached by previous sensitive action spectroscopy in the near-infrared region. The measurements were carried out in a cryogenic 22-pole ion trap with ${\rm{H}}_{\rm{3}}^{\rm{ + }}$ ions cooled to their lowest rotational levels by helium buffer gas. Laser-induced chemical reactions lead to the formation of ArH⁺ ions detected with single-ion sensitivity. These visible measurements, together with the previous near-infrared measurements, have helped to further develop empirically corrected calculations and have provided essential benchmarks for new ab initio calculations that now reach a spectroscopic accuracy of 0.1 cm⁻¹ on average up to the highest observed transition. Highly sensitive action spectroscopy and the attained high-accuracy predictions will enable us to find and measure transitions even further into the visible region of ${\rm{H}}_{\rm{3}}^{\rm{ + }}$ , paving the way towards the dissociation limit.</p>
authors Array ( [rft.aulast] => Berg [rft.aufirst] => Max )
Array ( [rft.aulast] => Wolf [rft.aufirst] => Andreas )
Array ( [rft.aulast] => Petrignani [rft.aufirst] => Annemieke )
languages eng
url https://www.jstor.org/stable/41739879
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author Berg, Max, Wolf, Andreas, Petrignani, Annemieke
author_facet Berg, Max, Wolf, Andreas, Petrignani, Annemieke, Berg, Max, Wolf, Andreas, Petrignani, Annemieke
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container_issue 1978
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container_title Philosophical Transactions: Mathematical, Physical and Engineering Sciences
container_volume 370
description <p>We report on the recent observation of new spectral lines of cold ${\rm{H}}_{\rm{3}}^{\rm{ + }}$ ions lying well in the visible spectral region. Transitions from the two lowest ro-vibrational levels to final levels up to 16 700 cm⁻¹, almost half way to the dissociation limit, have been measured, involving up to eight vibrational quanta. The observed transitions are more than six orders of magnitude less intense than the $v_2^1$ fundamental band and yet another order of magnitude weaker than reached by previous sensitive action spectroscopy in the near-infrared region. The measurements were carried out in a cryogenic 22-pole ion trap with ${\rm{H}}_{\rm{3}}^{\rm{ + }}$ ions cooled to their lowest rotational levels by helium buffer gas. Laser-induced chemical reactions lead to the formation of ArH⁺ ions detected with single-ion sensitivity. These visible measurements, together with the previous near-infrared measurements, have helped to further develop empirically corrected calculations and have provided essential benchmarks for new ab initio calculations that now reach a spectroscopic accuracy of 0.1 cm⁻¹ on average up to the highest observed transition. Highly sensitive action spectroscopy and the attained high-accuracy predictions will enable us to find and measure transitions even further into the visible region of ${\rm{H}}_{\rm{3}}^{\rm{ + }}$ , paving the way towards the dissociation limit.</p>
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spelling Berg, Max Wolf, Andreas Petrignani, Annemieke 1364-503X The Royal Society https://www.jstor.org/stable/41739879 <p>We report on the recent observation of new spectral lines of cold ${\rm{H}}_{\rm{3}}^{\rm{ + }}$ ions lying well in the visible spectral region. Transitions from the two lowest ro-vibrational levels to final levels up to 16 700 cm⁻¹, almost half way to the dissociation limit, have been measured, involving up to eight vibrational quanta. The observed transitions are more than six orders of magnitude less intense than the $v_2^1$ fundamental band and yet another order of magnitude weaker than reached by previous sensitive action spectroscopy in the near-infrared region. The measurements were carried out in a cryogenic 22-pole ion trap with ${\rm{H}}_{\rm{3}}^{\rm{ + }}$ ions cooled to their lowest rotational levels by helium buffer gas. Laser-induced chemical reactions lead to the formation of ArH⁺ ions detected with single-ion sensitivity. These visible measurements, together with the previous near-infrared measurements, have helped to further develop empirically corrected calculations and have provided essential benchmarks for new ab initio calculations that now reach a spectroscopic accuracy of 0.1 cm⁻¹ on average up to the highest observed transition. Highly sensitive action spectroscopy and the attained high-accuracy predictions will enable us to find and measure transitions even further into the visible region of ${\rm{H}}_{\rm{3}}^{\rm{ + }}$ , paving the way towards the dissociation limit.</p> Visible transitions from ground state${\rm{H}}_{\rm{3}}^{\rm{ + }}$measured with high-sensitivity action spectroscopy Philosophical Transactions: Mathematical, Physical and Engineering Sciences
spellingShingle Berg, Max, Wolf, Andreas, Petrignani, Annemieke, Philosophical Transactions: Mathematical, Physical and Engineering Sciences, Visible transitions from ground state${\rm{H}}_{\rm{3}}^{\rm{ + }}$measured with high-sensitivity action spectroscopy
title Visible transitions from ground state${\rm{H}}_{\rm{3}}^{\rm{ + }}$measured with high-sensitivity action spectroscopy
title_full Visible transitions from ground state${\rm{H}}_{\rm{3}}^{\rm{ + }}$measured with high-sensitivity action spectroscopy
title_fullStr Visible transitions from ground state${\rm{H}}_{\rm{3}}^{\rm{ + }}$measured with high-sensitivity action spectroscopy
title_full_unstemmed Visible transitions from ground state${\rm{H}}_{\rm{3}}^{\rm{ + }}$measured with high-sensitivity action spectroscopy
title_short Visible transitions from ground state${\rm{H}}_{\rm{3}}^{\rm{ + }}$measured with high-sensitivity action spectroscopy
title_sort visible transitions from ground state${\rm{h}}_{\rm{3}}^{\rm{ + }}$measured with high-sensitivity action spectroscopy
url https://www.jstor.org/stable/41739879