期刊
PHYSICAL REVIEW A
卷 83, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.83.030501
关键词
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资金
- NSF
- ARO
- MURI-AFOSR [PHY-0855683, PHY-1005453, W911NF-10-1-0505]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1005453] Funding Source: National Science Foundation
We demonstrate a simple technique for molecular-ion spectroscopy. BaCl+ molecular ions are trapped in a linear Paul trap in the presence of a room-temperature He buffer gas and photodissociated by driving an electronic transition from the ground X-1 Sigma(+) state to the repulsive wall of the A(1)Pi state. The photodissociation spectrum is recorded by monitoring the induced trap loss of BaCl+ ions as a function of excitation wavelength. Accurate molecular potentials and spectroscopic constants are determined. A comparison of the theoretical photodissociation cross sections with the measurements shows excellent agreement. This study represents an important step toward the production of ultracold ground-state molecular ions.
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