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Datum
2021-03-10Autor
Ring, TomWitte, ConstantinVasudevan, SudheendranDas, SuvajeetRanecky, Simon T.Lee, HangyeolLadda, NicolasSenftleben, ArneBraun, HendrikeBaumert, ThomasSchlagwort
530 Physik FlugzeitmassenspektrometrieDichroismusMassenspektrometrieFotoionisationDispersionChiralität <Elementarteilchenphysik>GasphaseFemtosekundenlaserMetadata
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Aufsatz
Self-referencing circular dichroism ion yield measurements for improved statistics using femtosecond laser pulses
Zusammenfassung
The combination of circular dichroism with laser mass spectrometry via the measurement of ion yields is a powerful tool in chiral recognition, but the measured anisotropies are generally weak. The method presented in this contribution reduces the measurement error significantly. A common path optical setup generates a pair of counter-rotating laser foci in the interaction region of a time-of-flight spectrometer. As the space focus condition is fulfilled for both foci individually, this becomes a twin-peak ion source with well separated and sufficiently resolved mass peaks. The individual control of polarization allows for in situ correction of experimental fluctuations measuring circular dichroism. Our robust optical setup produces reliable and reproducible results and is applicable for dispersion sensitive femtosecond laser pulses. In this contribution, we use 3-methyl-cyclopentanone as a prototype molecule to illustrate the evaluation procedure and the measurement principle.
Zitierform
In: Review of Scientific Instruments Volume 92 / Issue 3 (2021-03-10) eissn:1089-7623Förderhinweis
Gefördert im Rahmen eines Open-Access-Transformationsvertrags mit dem VerlagZitieren
@article{doi:10.17170/kobra-202110284979,
author={Ring, Tom and Witte, Constantin and Vasudevan, Sudheendran and Das, Suvajeet and Ranecky, Simon T. and Lee, Hangyeol and Ladda, Nicolas and Senftleben, Arne and Braun, Hendrike and Baumert, Thomas},
title={Self-referencing circular dichroism ion yield measurements for improved statistics using femtosecond laser pulses},
journal={Review of Scientific Instruments},
year={2021}
}
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2021-11-29T15:20:14Z 2021-11-29T15:20:14Z 2021-03-10 doi:10.17170/kobra-202110284979 http://hdl.handle.net/123456789/13416 Gefördert im Rahmen eines Open-Access-Transformationsvertrags mit dem Verlag eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ time of flight mass spectrometry dichroism laser mass spectrometry coherent control photoionization optical dispersion chirality gas phase femtosecond lasers optical devices 530 Self-referencing circular dichroism ion yield measurements for improved statistics using femtosecond laser pulses Aufsatz The combination of circular dichroism with laser mass spectrometry via the measurement of ion yields is a powerful tool in chiral recognition, but the measured anisotropies are generally weak. The method presented in this contribution reduces the measurement error significantly. A common path optical setup generates a pair of counter-rotating laser foci in the interaction region of a time-of-flight spectrometer. As the space focus condition is fulfilled for both foci individually, this becomes a twin-peak ion source with well separated and sufficiently resolved mass peaks. The individual control of polarization allows for in situ correction of experimental fluctuations measuring circular dichroism. Our robust optical setup produces reliable and reproducible results and is applicable for dispersion sensitive femtosecond laser pulses. In this contribution, we use 3-methyl-cyclopentanone as a prototype molecule to illustrate the evaluation procedure and the measurement principle. open access Ring, Tom Witte, Constantin Vasudevan, Sudheendran Das, Suvajeet Ranecky, Simon T. Lee, Hangyeol Ladda, Nicolas Senftleben, Arne Braun, Hendrike Baumert, Thomas doi:10.1063/5.0036344 Flugzeitmassenspektrometrie Dichroismus Massenspektrometrie Fotoionisation Dispersion Chiralität <Elementarteilchenphysik> Gasphase Femtosekundenlaser publishedVersion eissn:1089-7623 Issue 3 Review of Scientific Instruments Volume 92 false 033001
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