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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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Bibliographic Details
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]
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Database: Engineering Source
Description
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]
ISSN:00268976
DOI:10.1080/00268976.2019.1589008