Bichromatic Photoassociation Spectroscopy for the Determination of Rotational Constants of Cs<sub>2</sub> 0+ u Long-Range State below the 6S<sub>1/2</sub> + 6P<sub>1/2</sub> Asymptote

Bichromatic Photoassociation Spectroscopy for the Determination of Rotational Constants of Cs<sub>2</sub> 0+ u Long-Range State below the 6S<sub>1/2</sub> + 6P<sub>1/2</sub> Asymptote

This article demonstrates new observation of the high-resolution ro-vibrational bichromatic photoassociation spectra (BPAS) of Cs<sub>2</sub> in the 0+ u long-range state below the asymptotes 6S<sub>1/2 </sub>+ 6P<sub>1/2</sub>. By combining with a modulation spec...

Full description

Bibliographic Details
Main Authors: Jizhou Wu, Jie Ma, Yuqing Li, Wenliang Liu, Peng Li, Vladimir B. Sovkov
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Molecules
Subjects:
ultracold molecule
diatomic molecules
molecular spectra
bichromatic photoassociation spectroscopy
long-range state
non-rigid-rotor model
Online Access:https://www.mdpi.com/1420-3049/25/17/3963
id doaj-d8c66c3e98f44fbbbd5bbb96293636f6
record_format Article
spelling doaj-d8c66c3e98f44fbbbd5bbb96293636f62020-11-25T03:44:00ZengMDPI AGMolecules1420-30492020-08-01253963396310.3390/molecules25173963Bichromatic Photoassociation Spectroscopy for the Determination of Rotational Constants of Cs<sub>2</sub> 0+ u Long-Range State below the 6S<sub>1/2</sub> + 6P<sub>1/2</sub> AsymptoteJizhou Wu0Jie Ma1Yuqing Li2Wenliang Liu3Peng Li4Vladimir B. Sovkov5State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, 92 Wucheng Road, Taiyuan 030006, ChinaState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, 92 Wucheng Road, Taiyuan 030006, ChinaState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, 92 Wucheng Road, Taiyuan 030006, ChinaState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, 92 Wucheng Road, Taiyuan 030006, ChinaCollege of Physics and Electronic Engineering, Shanxi University, 92 Wucheng Road, Taiyuan 030006, ChinaState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, 92 Wucheng Road, Taiyuan 030006, ChinaThis article demonstrates new observation of the high-resolution ro-vibrational bichromatic photoassociation spectra (BPAS) of Cs<sub>2</sub> in the 0+ u long-range state below the asymptotes 6S<sub>1/2 </sub>+ 6P<sub>1/2</sub>. By combining with a modulation spectroscopic technique, precise references of the frequency differences have been engineered through the BPAS, with which the rotational constants of low-lying vibrational levels of the Cs<sub>2</sub> 0+ u long-range state have been accurately determined by fitting the frequency differences to the non-rigid-rotor model. The rotational constants for the newly observed seven ro-vibrational levels are summarized and disagreement for the level ῦ = 498 is clarified. The rotational constants of different vibrational levels demonstrate strong perturbations of the related energy structures. A simple analysis is performed and shows good agreement with experimental results.https://www.mdpi.com/1420-3049/25/17/3963ultracold moleculediatomic moleculesmolecular spectrabichromatic photoassociation spectroscopylong-range statenon-rigid-rotor model
collection DOAJ
language English
format Article
sources DOAJ
author Jizhou Wu
Jie Ma
Yuqing Li
Wenliang Liu
Peng Li
Vladimir B. Sovkov
spellingShingle Jizhou Wu
Jie Ma
Yuqing Li
Wenliang Liu
Peng Li
Vladimir B. Sovkov
Bichromatic Photoassociation Spectroscopy for the Determination of Rotational Constants of Cs<sub>2</sub> 0+ u Long-Range State below the 6S<sub>1/2</sub> + 6P<sub>1/2</sub> Asymptote
Molecules
ultracold molecule
diatomic molecules
molecular spectra
bichromatic photoassociation spectroscopy
long-range state
non-rigid-rotor model
author_facet Jizhou Wu
Jie Ma
Yuqing Li
Wenliang Liu
Peng Li
Vladimir B. Sovkov
author_sort Jizhou Wu
title Bichromatic Photoassociation Spectroscopy for the Determination of Rotational Constants of Cs<sub>2</sub> 0+ u Long-Range State below the 6S<sub>1/2</sub> + 6P<sub>1/2</sub> Asymptote
title_short Bichromatic Photoassociation Spectroscopy for the Determination of Rotational Constants of Cs<sub>2</sub> 0+ u Long-Range State below the 6S<sub>1/2</sub> + 6P<sub>1/2</sub> Asymptote
title_full Bichromatic Photoassociation Spectroscopy for the Determination of Rotational Constants of Cs<sub>2</sub> 0+ u Long-Range State below the 6S<sub>1/2</sub> + 6P<sub>1/2</sub> Asymptote
title_fullStr Bichromatic Photoassociation Spectroscopy for the Determination of Rotational Constants of Cs<sub>2</sub> 0+ u Long-Range State below the 6S<sub>1/2</sub> + 6P<sub>1/2</sub> Asymptote
title_full_unstemmed Bichromatic Photoassociation Spectroscopy for the Determination of Rotational Constants of Cs<sub>2</sub> 0+ u Long-Range State below the 6S<sub>1/2</sub> + 6P<sub>1/2</sub> Asymptote
title_sort bichromatic photoassociation spectroscopy for the determination of rotational constants of cs<sub>2</sub> 0+ u long-range state below the 6s<sub>1/2</sub> + 6p<sub>1/2</sub> asymptote
publisher MDPI AG
series Molecules
issn 1420-3049
publishDate 2020-08-01
description This article demonstrates new observation of the high-resolution ro-vibrational bichromatic photoassociation spectra (BPAS) of Cs<sub>2</sub> in the 0+ u long-range state below the asymptotes 6S<sub>1/2 </sub>+ 6P<sub>1/2</sub>. By combining with a modulation spectroscopic technique, precise references of the frequency differences have been engineered through the BPAS, with which the rotational constants of low-lying vibrational levels of the Cs<sub>2</sub> 0+ u long-range state have been accurately determined by fitting the frequency differences to the non-rigid-rotor model. The rotational constants for the newly observed seven ro-vibrational levels are summarized and disagreement for the level ῦ = 498 is clarified. The rotational constants of different vibrational levels demonstrate strong perturbations of the related energy structures. A simple analysis is performed and shows good agreement with experimental results.
topic ultracold molecule
diatomic molecules
molecular spectra
bichromatic photoassociation spectroscopy
long-range state
non-rigid-rotor model
url https://www.mdpi.com/1420-3049/25/17/3963
work_keys_str_mv AT jizhouwu bichromaticphotoassociationspectroscopyforthedeterminationofrotationalconstantsofcssub2sub0ulongrangestatebelowthe6ssub12sub6psub12subasymptote
AT jiema bichromaticphotoassociationspectroscopyforthedeterminationofrotationalconstantsofcssub2sub0ulongrangestatebelowthe6ssub12sub6psub12subasymptote
AT yuqingli bichromaticphotoassociationspectroscopyforthedeterminationofrotationalconstantsofcssub2sub0ulongrangestatebelowthe6ssub12sub6psub12subasymptote
AT wenliangliu bichromaticphotoassociationspectroscopyforthedeterminationofrotationalconstantsofcssub2sub0ulongrangestatebelowthe6ssub12sub6psub12subasymptote
AT pengli bichromaticphotoassociationspectroscopyforthedeterminationofrotationalconstantsofcssub2sub0ulongrangestatebelowthe6ssub12sub6psub12subasymptote
AT vladimirbsovkov bichromaticphotoassociationspectroscopyforthedeterminationofrotationalconstantsofcssub2sub0ulongrangestatebelowthe6ssub12sub6psub12subasymptote
_version_ 1724516821724299264

Similar Items