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Lin Q, Ma J, Coker J, Pang R, Wang Z, Furneaux JE, Yin J, Yang T. High resolution spectroscopy of B0 u+←X0 g+ transitions in 130Te 2: Reference lines spanning the 443.2-451.4 nm region. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 311:123887. [PMID: 38341931 DOI: 10.1016/j.saa.2024.123887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 11/21/2023] [Accepted: 01/10/2024] [Indexed: 02/13/2024]
Abstract
Molecular tellurium (130Te2) has long been regarded as a promising candidate for a variety of spectroscopic applications, especially as a frequency reference. Absorption lines of 130Te2 were published extensively in the past few decades, however, the spectral resolution was not sufficiently high to be considered a precision spectroscopic reference. Here, a high resolution spectral atlas of 130Te2 Doppler-free saturated absorption transitions is reported, and used to assign multiple ro-vibrational bands in the B(Σu-3)0u+←X(Σu-3)0g+ electronic transition via the Dunham model, giving updated Dunham parameters and diatomic constants for the B(Σu-3)0u+ state at an unprecedented level of precision. Our findings reveal spectroscopic properties of 130Te2 that might eventually contribute to frequency reference in precision measurement such as the quest for non-zero electron's Electric Dipole Moment (eEDM).
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Affiliation(s)
- Qinning Lin
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, PR China
| | - Jie Ma
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, PR China
| | - James Coker
- Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019, USA
| | - Renjun Pang
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, PR China
| | - Zesen Wang
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, PR China
| | - J E Furneaux
- Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019, USA.
| | - Jianping Yin
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, PR China
| | - Tao Yang
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, PR China; Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150 Science 1 - Street, Urumqi, Xinjiang 830011, PR China; Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, PR China.
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