Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory
A Stark decelerator is used in combination with velocity map imaging to study collisions of NO radicals with rare gas atoms in a counterpropagating crossed beam geometry. This powerful combination of techniques results in scattering images with extremely high resolution, in which rotational and L-ty...
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Format: | Article |
Language: | English |
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IOP Publishing
2015-01-01
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Series: | New Journal of Physics |
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Online Access: | https://doi.org/10.1088/1367-2630/17/5/055019 |
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author | Jolijn Onvlee Sjoerd N Vogels Ad van der Avoird Gerrit C Groenenboom Sebastiaan Y T van de Meerakker |
author_facet | Jolijn Onvlee Sjoerd N Vogels Ad van der Avoird Gerrit C Groenenboom Sebastiaan Y T van de Meerakker |
author_sort | Jolijn Onvlee |
collection | DOAJ |
description | A Stark decelerator is used in combination with velocity map imaging to study collisions of NO radicals with rare gas atoms in a counterpropagating crossed beam geometry. This powerful combination of techniques results in scattering images with extremely high resolution, in which rotational and L-type rainbows with superimposed quantum mechanical diffraction oscillations are visible. The experimental data are in excellent agreement with quantum mechanical scattering calculations. Furthermore, hard-shell models and a partial wave analysis are used to clarify the origin of the various structures that are visible. A specific feature is found for NO molecules colliding with Ar atoms that is extremely sensitive to the precise shape of the potential energy surface. Its origin is explained in terms of interfering partial waves with very high angular momentum, corresponding to trajectories with large impact parameters. |
first_indexed | 2024-03-12T16:44:17Z |
format | Article |
id | doaj.art-35dbd1200a5c4bf2991966e561d2f7e1 |
institution | Directory Open Access Journal |
issn | 1367-2630 |
language | English |
last_indexed | 2024-03-12T16:44:17Z |
publishDate | 2015-01-01 |
publisher | IOP Publishing |
record_format | Article |
series | New Journal of Physics |
spelling | doaj.art-35dbd1200a5c4bf2991966e561d2f7e12023-08-08T14:19:13ZengIOP PublishingNew Journal of Physics1367-26302015-01-0117505501910.1088/1367-2630/17/5/055019Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theoryJolijn Onvlee0Sjoerd N Vogels1Ad van der Avoird2Gerrit C Groenenboom3Sebastiaan Y T van de Meerakker4Radboud University , Institute for Molecules and Materials, Heijendaalseweg 135, 6525 AJ Nijmegen, The NetherlandsRadboud University , Institute for Molecules and Materials, Heijendaalseweg 135, 6525 AJ Nijmegen, The NetherlandsRadboud University , Institute for Molecules and Materials, Heijendaalseweg 135, 6525 AJ Nijmegen, The NetherlandsRadboud University , Institute for Molecules and Materials, Heijendaalseweg 135, 6525 AJ Nijmegen, The NetherlandsRadboud University , Institute for Molecules and Materials, Heijendaalseweg 135, 6525 AJ Nijmegen, The NetherlandsA Stark decelerator is used in combination with velocity map imaging to study collisions of NO radicals with rare gas atoms in a counterpropagating crossed beam geometry. This powerful combination of techniques results in scattering images with extremely high resolution, in which rotational and L-type rainbows with superimposed quantum mechanical diffraction oscillations are visible. The experimental data are in excellent agreement with quantum mechanical scattering calculations. Furthermore, hard-shell models and a partial wave analysis are used to clarify the origin of the various structures that are visible. A specific feature is found for NO molecules colliding with Ar atoms that is extremely sensitive to the precise shape of the potential energy surface. Its origin is explained in terms of interfering partial waves with very high angular momentum, corresponding to trajectories with large impact parameters.https://doi.org/10.1088/1367-2630/17/5/055019inelastic scatteringdifferential cross-sectionsmolecular beamsStark deceleratorion imaging34.10.+x |
spellingShingle | Jolijn Onvlee Sjoerd N Vogels Ad van der Avoird Gerrit C Groenenboom Sebastiaan Y T van de Meerakker Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory New Journal of Physics inelastic scattering differential cross-sections molecular beams Stark decelerator ion imaging 34.10.+x |
title | Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory |
title_full | Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory |
title_fullStr | Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory |
title_full_unstemmed | Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory |
title_short | Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory |
title_sort | resolving rainbows with superimposed diffraction oscillations in no rare gas scattering experiment and theory |
topic | inelastic scattering differential cross-sections molecular beams Stark decelerator ion imaging 34.10.+x |
url | https://doi.org/10.1088/1367-2630/17/5/055019 |
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