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Krumins V, Kruzins A, Tamanis M, Ferber R, Meshkov V, Pazyuk E, Stolyarov AV, Pashov AE. Observation and modelling of bound-free transitions to the $X^1\Sigma^+$ and $a^3\Sigma^+$ states of KCs. J Chem Phys 2022; 156:114305. [DOI: 10.1063/5.0082309] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Valts Krumins
- University of Latvia Faculty of Physics Mathematics and Optometry, Latvia
| | | | - Maris Tamanis
- University of Latvia Faculty of Physics Mathematics and Optometry, Latvia
| | - Ruvin Ferber
- Faculty of Physics, Mathematics and Optometry, University of Latvia Faculty of Physics Mathematics and Optometry, Latvia
| | - Vladimir Meshkov
- Department of Chemistry, Lomonosov Moscow State University, Russia
| | | | | | - Asen Enev Pashov
- Optics and spectroscopy, Sofia University, Faculty of Physics, Bulgaria
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2
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Arndt PT, Huennekens J, Packard C, Tran V, Carey J, Livingston R, Marcune VM, Rowe BA, Ng J, Qi J, Lyyra AM, Ahmed EH. The effect of collisions on the rotational angular momentum of diatomic molecules studied using polarized light. J Chem Phys 2020; 153:184310. [DOI: 10.1063/5.0024380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- P. T. Arndt
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J. Huennekens
- Physics Department, Lehigh University, Bethlehem, Pennsylvania 18015, USA
| | - C. Packard
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - V. Tran
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J. Carey
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R. Livingston
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - V. M. Marcune
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - B. A. Rowe
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J. Ng
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J. Qi
- Department of Physics and Astronomy, Penn State University, Berks Campus, Reading, Pennsylvania 19610, USA
| | - A. M. Lyyra
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - E. H. Ahmed
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
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Wang X, Liu W, Li Y, Wu J, Sovkov VB, Ma J, Onishchenko S, Li P, Fu Y, Li D, Fan Q, Xiao L, Jia S. Hyperfine structure of the NaCs b 3Π 2 state near the dissociation limit 3S 1/2 + 6P 3/2 observed with ultracold atomic photoassociation. Phys Chem Chem Phys 2020; 22:3809-3816. [PMID: 31872827 DOI: 10.1039/c9cp05870b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report new observations of the hyperfine structure in three ro-vibrational levels of the b3Π2 state of NaCs near the dissociation limit 3S1/2 + 6P3/2. The experiment was done via photoassociation of ultracold atoms in a dual-species dark-spot magneto-optical trap, and the spectra were measured as atomic trap losses. The simulation of the hyperfine structure showed that the greater part of the observed structure belongs to almost isolated levels of the b3Π2 state, but there are other parts of mixed character where the contribution from the 1Σ symmetry dominates.
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Affiliation(s)
- Xiaofeng Wang
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Wucheng Rd. 92, 030006 Taiyuan, China.
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4
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Steely A, Myers RL, Kortyna A, Huennekens J, Malenda RF, Faust C. Fitting an experimental potential energy curve for the 10(0 +)[43Π0] electronic state of NaCs. J Chem Phys 2019; 151:024307. [DOI: 10.1063/1.5100748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Andrew Steely
- Department of Physics, Susquehanna University, 514 University Ave., Selinsgrove, Pennsylvania 17870, USA
| | - Rachel L. Myers
- Department of Physics and Earth Science, Moravian College, 1200 Main St., Bethlehem, Pennsylvania 18018, USA
| | - Andrew Kortyna
- JILA, National Institute of Standards and Technology and University of Colorado, Boulder, Colorado 80309, USA
| | - John Huennekens
- Department of Physics, Lehigh University, 16 Memorial Drive East, Bethlehem, Pennsylvania 18015, USA
| | - R. F. Malenda
- Department of Physics and Earth Science, Moravian College, 1200 Main St., Bethlehem, Pennsylvania 18018, USA
| | - Carl Faust
- Department of Physics, Susquehanna University, 514 University Ave., Selinsgrove, Pennsylvania 17870, USA
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5
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Abdessalem K, Mejrissi L, Habli H, Issaoui N, Ghalla H, Oujia B. Spectroscopic and electric dipole properties of the Van der Waals interaction between barium and krypton atoms. Mol Phys 2019. [DOI: 10.1080/00268976.2018.1504130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Kawther Abdessalem
- Laboratoire de Physique Quantique, Faculté des Sciences de Monastir, Monastir, Tunisie
| | - Leila Mejrissi
- Faculty of Science, Physics Department, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Héla Habli
- Laboratoire de Physique Quantique, Faculté des Sciences de Monastir, Monastir, Tunisie
| | - Noureddine Issaoui
- Laboratoire de Physique Quantique, Faculté des Sciences de Monastir, Monastir, Tunisie
| | - Houcine Ghalla
- Laboratoire de Physique Quantique, Faculté des Sciences de Monastir, Monastir, Tunisie
| | - Brahim Oujia
- Laboratoire de Physique Quantique, Faculté des Sciences de Monastir, Monastir, Tunisie
- Faculty of Science, Physics Department, University of Jeddah, Jeddah, Kingdom of Saudi Arabia
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6
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Wu J, Liu W, Wang X, Ma J, Li D, Sovkov VB, Xiao L, Jia S. Observation of photoassociation of ultracold sodium and cesium at the asymptote Na (3S 1/2) + Cs (6P 1/2). J Chem Phys 2018; 148:174304. [PMID: 29739213 DOI: 10.1063/1.5023330] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We report on the production of ultracold heteronuclear NaCs* molecules in a dual-species magneto-optical trap through photoassociation. The electronically excited molecules are formed below the Na (3S1/2) + Cs (6P1/2) dissociation limit. 12 resonance lines are detected using trap-loss spectroscopy based on a highly sensitive modulation technique. The highest observed rovibrational level exhibits clear hyperfine structure, which is detected for the first time. This structure is simulated within a simplified model consisting of 4 coupled levels belonging to the initially unperturbed Hund's case "a" electronic states, which have been explored in our previous work that dealt with the Na (3S1/2) + Cs (6P3/2) asymptote [W. Liu et al., Phys. Rev. A 94, 032518 (2016)].
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Affiliation(s)
- Jizhou Wu
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China
| | - Wenliang Liu
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China
| | - Xiaofeng Wang
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China
| | - Jie Ma
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China
| | - Dan Li
- Center for Photonics and Electronics, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
| | - Vladimir B Sovkov
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China
| | - Liantuan Xiao
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China
| | - Suotang Jia
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China
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Faust C, Jones J, Huennekens J, Field RW. Experimental studies of the NaCs 12(0 +) [7 1Σ +] state: Spin-orbit and non-adiabatic interactions and quantum interference in the 12(0 +) [7 1Σ +] and 11(0 +) [5 3Π 0] emission spectra. J Chem Phys 2017; 146:104302. [PMID: 28298109 DOI: 10.1063/1.4976630] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
We present results from experimental studies of the 11(0+) and 12(0+) electronic states of the NaCs molecule. An optical-optical double resonance method is used to obtain Doppler-free excitation spectra. Selected data from the 11(0+) and 12(0+) high-lying electronic states are used to obtain Rydberg-Klein-Rees and Inverse Perturbation Approach potential energy curves. Interactions between these two electronic states are evident in the patterns observed in the bound-bound and bound-free fluorescence spectra. A model, based on two separate interaction mechanisms, is presented to describe how the wavefunctions of the two states mix. The electronic parts of the wavefunctions interact via spin-orbit coupling, while the individual rotation-vibration levels interact via a second mechanism, which is likely to be non-adiabatic coupling. A modified version of the BCONT program was used to simulate resolved fluorescence from both upper states. Parameters of the model that describe the two interaction mechanisms were varied until simulations were able to adequately reproduce experimental spectra.
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Affiliation(s)
- C Faust
- Department of Physics, Lehigh University, 16 Memorial Drive East, Bethlehem, Pennsylvania 18015, USA
| | - J Jones
- Department of Physics, Lehigh University, 16 Memorial Drive East, Bethlehem, Pennsylvania 18015, USA
| | - J Huennekens
- Department of Physics, Lehigh University, 16 Memorial Drive East, Bethlehem, Pennsylvania 18015, USADepartment of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R W Field
- Department of Physics, Lehigh University, 16 Memorial Drive East, Bethlehem, Pennsylvania 18015, USADepartment of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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