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Xiao H, Wang J, Zhang R, Shan N, Gao T. The vibrational and hyperfine spectroscopy toward laser cooling 87Sr 35Cl. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 282:121679. [PMID: 35917619 DOI: 10.1016/j.saa.2022.121679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/23/2022] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
We theoretically investigate the possibility of laser cooling 87Sr35Cl molecule in accordance with vibrational and hyperfine spectroscopy. The potential energy curves and dipole moment of the X2Σ+1/2, A2Π1/2,3/2 and B2Σ+ states are calculated using ab initio method and the spectroscopic parameters are in good agreement with the experimental data. On account of the accurate potential energy curves and the transition dipole moment, the Franck - Condon factors and radiative lifetimes are predicted. Comparing the conditions of laser cooling candidate molecules, the A2Π 1/2 ↔ X2Σ+1/2 transition is selected as the laser cooling cycle system. In order to obtain an approximately closed cooling cycle system, we employed matrix element algorithm to calculated the hyperfine spectroscopy and branching ratios of the 87Sr35Cl molecule. Furthermore, an electro-optical modulator (EOM) is designed including six hyperfine levels of the ground state X2Σ+1/2 (v = 0, N = 1).
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Affiliation(s)
- Huagang Xiao
- Institute of Atomic and Molecular physics, Sichuan University, Chengdu 610065, China
| | - Jiangnan Wang
- Institute of Atomic and Molecular physics, Sichuan University, Chengdu 610065, China
| | - Ruijie Zhang
- Institute of Atomic and Molecular physics, Sichuan University, Chengdu 610065, China
| | - Na Shan
- Institute of Atomic and Molecular physics, Sichuan University, Chengdu 610065, China
| | - Tao Gao
- Institute of Atomic and Molecular physics, Sichuan University, Chengdu 610065, China; Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610065, China.
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2
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Xiao H, Zhang R, Ma H, Gao T. Spectroscopy and rovibrational cooling of AuF and its cation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 277:121279. [PMID: 35512446 DOI: 10.1016/j.saa.2022.121279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/12/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
The feasibility of laser cooling of AuF molecule and its cation are investigated from vibrational and rotational perspectives. The spectroscopy of AuF molecule and AuF+ molecular cation are obtained by the method of multireference configuration interaction plus Davidson correction (MRCI + Q) and spin-orbit coupling (SOC) effect. On account of the accurate molecular spectroscopy and the transition dipole moment, the Franck-Condon factors and radiative lifetimes of AuF molecule and AuF+ molecular cation are calculated. Comparing the criterias of laser cooling candidate molecules, the AuF is an excellent candidate for laser cooling and while AuF+ is not sutable. The b3Π0+ ↔ Χ1Σ+0+ transition of AuF is selected for laser cooling and an optical cycling scheme is proposed. The scheme possesses highly diagonally Franck-Condon factors and the scattered photons achieve ∼ 104. Furthermore, the rotational transition analysis is also included in our work and found that its Franck Condon factors and Einstein coefficients are undistorted. Our work could provide theoretical support and accelerate the laser cooling of AuF molecules in experiments.
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Affiliation(s)
- Huagang Xiao
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Ruijie Zhang
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Hongyu Ma
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
| | - Tao Gao
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China; Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610065, China.
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3
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Madi A, El-Kork N, Zeid I, Korek M. Laser Cooling and Electronic Structure of Be Halides Anions BeX - (X=Cl, Br, F, and I). J Chem Phys 2022; 157:024104. [DOI: 10.1063/5.0091872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The adiabatic potential energy curves of the low lying electronic states of the Be halides anions BeX- (Cl, Br, F, and I) have been investigated in the representation 2s+1Ʌ(+/−) by using the complete active space self-consistent field (CASSCF) with multireference configuration interaction (MRCI+Q) method. The spectroscopic parameters Te,, Re, ωe, and Be, the static and transition dipole moment μe, and a rovibrational study of the investigated electronic states have been performed. New electronic states were investigated here for the first time. The highly diagonal FCF and the short radiative lifetime for the molecular anion BeF- prove its candidacy for direct Doppler laser cooling. The experimental proof of the stability and the calculated experimental parameters such as the vibrational branching ratio, the slowing distance, the recoil and Doppler temperatures with the experimental conditions of the buffer gas cell of this anion open the route for experimental work on the BeF- molecular ion.
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Affiliation(s)
| | - Nayla El-Kork
- Science Department, Khalifa University of Science Technology - Abu Dhabi Campus, United Arab Emirates
| | - Israa Zeid
- Physics, Beirut Arab University, Lebanon
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Ivanov MV, Gulania S, Krylov AI. Two Cycling Centers in One Molecule: Communication by Through-Bond Interactions and Entanglement of the Unpaired Electrons. J Phys Chem Lett 2020; 11:1297-1304. [PMID: 31973526 DOI: 10.1021/acs.jpclett.0c00021] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Many applications in quantum information science (QIS) rely on the ability to laser-cool molecules. The scope of applications can be expanded if laser-coolable molecules possess two or more cycling centers, i.e., moieties capable of scattering photons via multiple absorption-emission events. Here we employ the equation-of-motion coupled-cluster method for double electron attachment (EOM-DEA-CCSD) to study the electronic structure of hypermetallic molecules with two alkaline-earth metals connected by an acetylene linker. The electronic structure of the molecules is similar to that of two separated alkali metals; however, the interaction between the two electrons is weak and largely dominated by through-bond interactions. The communication between the two cycling centers is quantified by the extent of the entanglement of the two unpaired electrons associated with the two cycling centers. This contribution highlights the rich electronic structure of hypermetallic molecules that may advance various applications in QIS and beyond.
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Affiliation(s)
- Maxim V Ivanov
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Sahil Gulania
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Anna I Krylov
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
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Deng BL, Wan MJ, Zhao XF, Tang K, Zhang XQ. The study of laser cooling of TeH - anion in theoretical approach. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 227:117684. [PMID: 31672379 DOI: 10.1016/j.saa.2019.117684] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 10/08/2019] [Accepted: 10/19/2019] [Indexed: 06/10/2023]
Abstract
The probabilities of laser cooling of TeH- anion via a spin-forbidden transition and a three-electronic-level transition are proposed. The potential energy curves of the X1Σ+, a3∏, A1∏, and b3Σ+ electronic states of tellurium monohydride anion (TeH-) are calculated using multi-reference configuration interaction method. Davidson corrections, core-valence correlations and spin-orbit coupling effects are also considered. The AWCV5Z-PP pseudopotential basis set of Te atom is used. Spectroscopic parameters of the Λ-S and Ω states are obtained by solving radial Schrodinger equation. These results are reported at the first time. Permanent dipole moments of the Ω states and transition dipole moments of the a21↔X0+ and A1↔X0+ transitions are also calculated. Highly diagonally distributed Franck-Condon factors of the a21↔X0+ and A1↔X0+ transitions are obtained, the value of f00 is 0.9970 and 0.9980, respectively. Spontaneous radiative lifetimes of the a21 and A1 excited states are predicted. i.e. τ(a21) = 200.3 ns and τ(A1) = 84.3 ns. Only the main pump laser is required to driving a21↔X0+ and A1↔X0+ transitions. The laser wavelengths both are in the visible region. Doppler temperatures and recoil temperatures of laser cooling TeH- anion are also predicted.
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Affiliation(s)
- Bang-Lin Deng
- Department of Applied Physics, Chengdu University of Technology, Chengdu, China
| | - Ming-Jie Wan
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin, China.
| | - Xiao-Feng Zhao
- Department of Applied Physics, Chengdu University of Technology, Chengdu, China
| | - Ke Tang
- Department of Applied Physics, Chengdu University of Technology, Chengdu, China
| | - Xiao-Qin Zhang
- Department of Applied Physics, Chengdu University of Technology, Chengdu, China
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Xu MS, Yang CL, Wang MS, Ma XG. Theoretical study on the low-lying excited electronic states and laser cooling feasibility of CuH molecule. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 212:55-60. [PMID: 30594854 DOI: 10.1016/j.saa.2018.12.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 12/18/2018] [Accepted: 12/20/2018] [Indexed: 06/09/2023]
Abstract
To evaluate the feasibility of the laser cooling of CuH molecule, we investigate the electronic properties, the vibrational and rotational characteristics of the molecule based on the multi-reference configuration interaction method with all-electron basis sets. The potential energy curves (PECs) of X1Σ+, A1Σ+, B1Σ+, a3Σ+, b3Σ+, e3Σ+, C1П, D1П, c3П and d3П states and the transition dipole moments between these states are calculated. The Schrödinger equation of nuclear movement is solved for each electronic state to obtain the rotational and vibration energy levels. The spectroscopic parameters are calculated based on the fitted analytical function from the PECs. The present results are in good agreement with the theoretical and experimental values available in the literature. The optical scheme of the laser cooling for CuH molecule is constructed with A1Σ+ ↔ X1Σ+ as the close-loop transition. Three lasers are necessary in each direction to maintain enough scattering photons because of the limited Franck-Condon factor of 0.78. The wavelengths of the pumping lasers are determined. The recoil temperature is 1.72 μk, which is the expected temperature to be reached through the method of the cooling below the doppler limit.
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Affiliation(s)
- Mao-Sen Xu
- School of Physics and Optoelectronics Engineering, Ludong University, Yantai 264025, People's Republic of China
| | - Chuan-Lu Yang
- School of Physics and Optoelectronics Engineering, Ludong University, Yantai 264025, People's Republic of China.
| | - Mei-Shan Wang
- School of Physics and Optoelectronics Engineering, Ludong University, Yantai 264025, People's Republic of China
| | - Xiao-Guang Ma
- School of Physics and Optoelectronics Engineering, Ludong University, Yantai 264025, People's Republic of China
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7
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Affiliation(s)
- Jian-wei Cao
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Feng-yi Li
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wen-sha Xia
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wen-sheng Bian
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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8
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Ivanov MV, Bangerter FH, Krylov AI. Towards a rational design of laser-coolable molecules: insights from equation-of-motion coupled-cluster calculations. Phys Chem Chem Phys 2019; 21:19447-19457. [DOI: 10.1039/c9cp03914g] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Access to cold molecules is critical for quantum information science, design of new sensors, ultracold chemistry, and search of new phenomena.
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Affiliation(s)
- Maxim V. Ivanov
- Department of Chemistry
- University of Southern California
- Los Angeles
- USA
| | - Felix H. Bangerter
- Department of Chemistry
- University of Southern California
- Los Angeles
- USA
- Ludwig Maximilian University Munich
| | - Anna I. Krylov
- Department of Chemistry
- University of Southern California
- Los Angeles
- USA
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9
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Fu M, Ma H, Cao J, Bian W. Laser cooling of CaBr molecules and production of ultracold Br atoms: A theoretical study including spin-orbit coupling. J Chem Phys 2018; 146:134309. [PMID: 28390362 DOI: 10.1063/1.4979566] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Owing to the exciting potential applications of ultracold atoms and molecules in many fields, developing new cooling schemes has attracted great interests in recent years. Here, we investigate laser cooling of CaBr molecules and design a photonic scheme for the production of ultracold Br atoms using the highly accurate ab initio and dynamical methods. We find that the AΠ1/22(ν'=0)→X2Σ1/2+(ν=0) transition for CaBr features a large vibrational branching ratio, a significant photon-scattering rate, and no intermediate electronic-state interference, indicating that the ultracold CaBr could be produced through a three-laser cooling scheme. Moreover, an efficient four-pulse excitation scheme from the ground rovibrational level of the cooled CaBr molecules is proposed to yield ultracold Br atoms, in which a few spin-orbit excited states are utilized as the intermediate states. The importance of the spin-orbit coupling is underscored in this work.
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Affiliation(s)
- Mingkai Fu
- CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Haitao Ma
- CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jianwei Cao
- CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wensheng Bian
- CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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11
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Zhang QQ, Yang CL, Wang MS, Ma XG, Liu WW. The ground and low-lying excited states and feasibility of laser cooling for GaH + and InH + cations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 193:78-86. [PMID: 29223057 DOI: 10.1016/j.saa.2017.12.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 11/17/2017] [Accepted: 12/01/2017] [Indexed: 06/07/2023]
Abstract
The potential energy curves and transition dipole moments of 12Σ+ and 12Π states of GaH+ and InH+ cations are performed by employing ab initio calculations. Based on the potential energy curves, the rotational and vibrational energy levels of the two states are obtained by solving the Schrödinger equation of nuclear movement. The spectroscopic parameters are deduced with the obtained rovibrational energy levels. The spin-orbit coupling effect of the 2Π states for both the GaH+ and InH+ cations are also calculated. The feasibility of laser cooling of GaH+ and InH+ cations are examined by using the results of the electronic and spectroscopic properties. The highly diagonal Franck-Condon factors and appropriate radiative lifetimes are determined by using the potential energy curves and transition dipole moments for the 2Π1/2, 3/2↔12Σ+ transitions. The results indicate that the 2Π1/2, 3/2↔12Σ+ transitions of both GaH+ and InH+ cations are appropriate for the close cycle transition of laser cooling. The optical scheme of the laser cooling is constructed for the GaH+ and InH+ cations.
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Affiliation(s)
- Qing-Qing Zhang
- School of Physics and Optoelectronics Engineering, Ludong University, Yantai 264025, People's Republic of China
| | - Chuan-Lu Yang
- School of Physics and Optoelectronics Engineering, Ludong University, Yantai 264025, People's Republic of China.
| | - Mei-Shan Wang
- School of Physics and Optoelectronics Engineering, Ludong University, Yantai 264025, People's Republic of China
| | - Xiao-Guang Ma
- School of Physics and Optoelectronics Engineering, Ludong University, Yantai 264025, People's Republic of China
| | - Wen-Wang Liu
- School of Physics and Optoelectronics Engineering, Ludong University, Yantai 264025, People's Republic of China
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12
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Gao Y, Wan M. Vibrational branching ratios and radiative lifetimes in the laser cooling of AlBr. Phys Chem Chem Phys 2018; 19:5519-5524. [PMID: 28165081 DOI: 10.1039/c6cp08181a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The feasibility of laser cooling of the AlBr molecule is investigated using ab initio quantum chemistry. Potential energy curves, permanent dipole moments, and transition dipole moments for the ground state X1Σ+ and the first two excited states (a3Π and A1Π) are calculated using the multi-reference configuration interaction plus Davidson corrections (MRCI+Q) method with the ACVQZ basis set; the spin-orbit coupling effects are also taken into account in electronic structure calculations at the MRCI level. Based on the acquired potential energy curves and transition dipole moments, highly diagonally distributed Franck-Condon factors (f00 = 0.9540, f11 = 0.8172) and vibrational branching ratios (R00 = 0.9708, R11 = 0.8420) for the transition are determined. Radiative lifetime calculations of the A1Π1 (ν' = 0-4) state are found to be short (9.16-11.48 ns) enough for rapid laser cooling. The proposed main cycling laser drives the transition at the wavelength λ00 = 279.19 nm. The vibrational branching loss ratios of the A1Π1 (ν') state to the intervening states a3Π0+ and a3Π1 are small (<5.2 × 10-6) enough to be negligible. The present theoretical results indicate that the AlBr molecule is a promising candidate for laser cooling.
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Affiliation(s)
- Yufeng Gao
- National Demonstration Center for Experimental Physics Education, College of Physics and Materials Science, Henan Normal University, Xinxiang 453007, China.
| | - Mingjie Wan
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China
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Wan M, Yuan D, Jin C, Wang F, Yang Y, Yu Y, Shao J. Laser cooling of the AlCl molecule with a three-electronic-level theoretical model. J Chem Phys 2017; 145:024309. [PMID: 27421407 DOI: 10.1063/1.4955498] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Feasibility of laser-cooling AlCl molecule is investigated using ab initio quantum chemistry. Potential energy curves, permanent dipole moments, and transition dipole moments for the X(1)Σ(+), a(3)Π, and A(1)Π states are studied based on multi-reference configuration interaction plus Davidson corrections (MRCI+Q) method with ACVQZ basis set, spin-orbit coupling effects are considered at the MRCI+Q level. Highly diagonally distributed Franck-Condon factors (f00 = 0.9988 and f11 = 0.9970) and branching ratios (R00 = 0.9965, R01 = 2.85 × 10(-3), R02 = 6.35 × 10(-4), and R03 = 2.05 × 10(-6)) for the A(1)Π1(ν(')=0)→X(1)Σ0(+) (+)(ν(″)=0) transition are determined. A sufficiently radiative lifetime τ (A(1)Π1) = 4.99 ns is predicted for rapid laser cooling. The proposed cooling wavelength is deep in the ultraviolet region at λ00 = 261.75 nm. Total emission rates for the a(3)Π0(+) →X(1)Σ0(+) (+), a(3)Π1→X(1)Σ0(+) (+), A(1)Π1 → a(3)Π0(+) , and A(1)Π1 → a(3)Π1 transitions are particularly small (∼10 s(-1)-650 s(-1)). The calculated vibrational branching loss ratio to the intermediate a(3)Π0(+) and a(3)Π1 states can be negligible. The results imply the probability of laser cooling AlCl molecule with three-electronic-level.
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Affiliation(s)
- Mingjie Wan
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China
| | - Di Yuan
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China
| | - Chengguo Jin
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China
| | - Fanhou Wang
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China
| | - Yujie Yang
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China
| | - You Yu
- College of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu 610225, China
| | - Juxiang Shao
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China
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14
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Zhang YG, Zhang H, Song HY, Yu Y, Wan MJ. Theoretical investigation on spin-forbidden cooling transitions of gallium hydride. Phys Chem Chem Phys 2017; 19:24647-24655. [DOI: 10.1039/c7cp02295f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The feasibility of laser cooling of gallium hydride is investigated using ab initio quantum chemistry.
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Affiliation(s)
- Yun-Guang Zhang
- School of Science
- Xi’an University of Posts and Telecommunications
- Xi’an 710121
- China
| | - Hua Zhang
- School of Science
- Xi’an University of Posts and Telecommunications
- Xi’an 710121
- China
| | - Hai-Yang Song
- School of Science
- Xi’an University of Posts and Telecommunications
- Xi’an 710121
- China
| | - You Yu
- College of Optoelectronic Technology
- Chengdu University of Information Technology
- Chengdu 610225
- China
| | - Ming-Jie Wan
- Computational Physics Key Laboratory of Sichuan Province
- Yibin University
- Yibin 644007
- China
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15
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Wan MJ, Huang DH, Yu Y, Zhang YG. Laser cooling of the OH− molecular anion in a theoretical investigation. Phys Chem Chem Phys 2017; 19:27360-27367. [DOI: 10.1039/c7cp04393g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The schemes for laser cooling of the OH− anion are proposed using an ab initio method.
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Affiliation(s)
- Ming-jie Wan
- Computational Physics Key Laboratory of Sichuan Province
- Yibin University
- Yibin
- China
| | - Duo-hui Huang
- Computational Physics Key Laboratory of Sichuan Province
- Yibin University
- Yibin
- China
| | - You Yu
- College of Optoelectronic Technology
- Chengdu University of Information Technology
- Chengdu
- China
| | - Yun-guang Zhang
- School of Science
- Xi'an University of Posts and Telecommunications
- Xi'an
- China
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16
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Fu M, Cao J, Ma H, Bian W. Laser cooling of copper monofluoride: a theoretical study including spin–orbit coupling. RSC Adv 2016. [DOI: 10.1039/c6ra07835d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A laser cooling scheme is proposed for CuF by including the spin–orbit coupling effects, and based on our calculated radiative lifetimes and vibrational branching ratios.
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Affiliation(s)
- Mingkai Fu
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Jianwei Cao
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Haitao Ma
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Wensheng Bian
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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17
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Wan M, Huang D, Shao J, Yu Y, Li S, Li Y. Effects of spin-orbit coupling on laser cooling of BeI and MgI. J Chem Phys 2015; 143:164312. [DOI: 10.1063/1.4934719] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Affiliation(s)
- Mingjie Wan
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China
| | - Duohui Huang
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China
| | - Juxiang Shao
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China
| | - You Yu
- College of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu 610225, China
| | - Song Li
- College of Physical Science and Technology, Yangtze University, Jingzhou 434023, China
| | - Yuanyuan Li
- Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, China
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