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Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
Published on: February 14, 2014
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Electronic Spectroscopy and Photoionization of LiBe
Thomas D Persinger1, Jiande Han1, Michael C Heaven1
1Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States.
The Journal of Physical Chemistry. A
|September 14, 2021
Summary
This study advances the spectroscopic characterization of lithium beryllium (LiBe) and its ion (LiBe+). New electronic states were observed, confirming LiBe
Area of Science:
- Quantum Chemistry
- Molecular Spectroscopy
- Atomic Physics
Background:
- Previous research on LiBe focused on intermetallic bonding and ultracold production.
- Limited spectroscopic data existed for LiBe and LiBe+.
Purpose of the Study:
- To advance the spectroscopic characterization of electronic states of LiBe.
- To characterize the ground state of LiBe+.
- To validate theoretical predictions for LiBe and LiBe+.
Main Methods:
- High-level quantum chemistry calculations.
- Advanced spectroscopic techniques.
- Photoelectron spectroscopy.
Main Results:
- Observed several new electronic states of neutral LiBe (12Π, 22Σ+, 32Σ+, 42Π(3d)).
- Determined the ionization energy of LiBe.
- Mapped low-energy vibrational levels of LiBe+ X1Σ+.
- Identified the 22Σ+-X2Σ+ transition as suitable for direct laser cooling.
Conclusions:
- The study provides comprehensive spectroscopic data for LiBe and LiBe+.
- Results validate theoretical quantum chemistry predictions.
- Identified potential for ultracold applications of LiBe.
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