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Direct excitation of the spin-orbit forbidden X2π3/2 ← X2π1/2 transition in NO using the intra-cavity free electron laser FELICE.

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Title: Direct excitation of the spin-orbit forbidden X2π3/2 ← X2π1/2 transition in NO using the intra-cavity free electron laser FELICE.
Authors: Cremers, Theo1 (AUTHOR) basvdm@science.ru.nl, Chefdeville, Simon1 (AUTHOR), Bakker, Joost M.2 (AUTHOR), Leo Meerts, W.2 (AUTHOR), van de Meerakker, Sebastiaan Y. T.1 (AUTHOR)
Source: Molecular Physics. Nov2019, Vol. 117 Issue 21, p2941-2946. 6p.
Subjects: Spin excitations, Free electron lasers, Excited states, Single molecule magnets, Magnetic moments, Quantum states
Abstract: We present the direct far-infrared optical excitation of NO radicals from the electronic ground state to the spin-orbit excited state. This spin-orbit forbidden transition at a photon energy near 125 cm−1 borrows intensity by a small admixture of character into the wavefunction, and can be saturated using the intracavity free electron laser FELICE. In the state, the NO radical has a negligible magnetic moment, whereas the radicals have a large magnetic moment in the excited state. The direct optical excitation demonstrated here thus effectively 'switches on' the molecule's magnetic moment, and allows for the production of a sample of NO () with almost perfect quantum state purity. These optically prepared well-defined packets of magnetic NO radicals offer interesting prospects for the use of this benchmark molecule in molecular deceleration and trapping experiments. [ABSTRACT FROM AUTHOR]
Copyright of Molecular Physics is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: Direct excitation of the spin-orbit forbidden X<superscript>2</superscript>π<subscript>3/2</subscript> ← X<superscript>2</superscript>π<subscript>1/2</subscript> transition in NO using the intra-cavity free electron laser FELICE.
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  Data: <searchLink fieldCode="AR" term="%22Cremers%2C+Theo%22">Cremers, Theo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> basvdm@science.ru.nl</i><br /><searchLink fieldCode="AR" term="%22Chefdeville%2C+Simon%22">Chefdeville, Simon</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bakker%2C+Joost+M%2E%22">Bakker, Joost M.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Leo+Meerts%2C+W%2E%22">Leo Meerts, W.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22van+de+Meerakker%2C+Sebastiaan+Y%2E+T%2E%22">van de Meerakker, Sebastiaan Y. T.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Molecular+Physics%22">Molecular Physics</searchLink>. Nov2019, Vol. 117 Issue 21, p2941-2946. 6p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Spin+excitations%22">Spin excitations</searchLink><br /><searchLink fieldCode="DE" term="%22Free+electron+lasers%22">Free electron lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Excited+states%22">Excited states</searchLink><br /><searchLink fieldCode="DE" term="%22Single+molecule+magnets%22">Single molecule magnets</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+moments%22">Magnetic moments</searchLink><br /><searchLink fieldCode="DE" term="%22Quantum+states%22">Quantum states</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: We present the direct far-infrared optical excitation of NO radicals from the electronic ground state to the spin-orbit excited state. This spin-orbit forbidden transition at a photon energy near 125 cm−1 borrows intensity by a small admixture of character into the wavefunction, and can be saturated using the intracavity free electron laser FELICE. In the state, the NO radical has a negligible magnetic moment, whereas the radicals have a large magnetic moment in the excited state. The direct optical excitation demonstrated here thus effectively 'switches on' the molecule's magnetic moment, and allows for the production of a sample of NO () with almost perfect quantum state purity. These optically prepared well-defined packets of magnetic NO radicals offer interesting prospects for the use of this benchmark molecule in molecular deceleration and trapping experiments. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Molecular Physics is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/00268976.2019.1589008
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      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 2941
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      – SubjectFull: Spin excitations
        Type: general
      – SubjectFull: Free electron lasers
        Type: general
      – SubjectFull: Excited states
        Type: general
      – SubjectFull: Single molecule magnets
        Type: general
      – SubjectFull: Magnetic moments
        Type: general
      – SubjectFull: Quantum states
        Type: general
    Titles:
      – TitleFull: Direct excitation of the spin-orbit forbidden X2π3/2 ← X2π1/2 transition in NO using the intra-cavity free electron laser FELICE.
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            NameFull: Bakker, Joost M.
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            NameFull: Leo Meerts, W.
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            NameFull: van de Meerakker, Sebastiaan Y. T.
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              Text: Nov2019
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              Y: 2019
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