期刊
PHYSICAL REVIEW APPLIED
卷 14, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.14.024053
关键词
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资金
- Austrian Science Fund FWF [DK-ALM: W1259-N27]
- Region Ile-de-France
- ANR BESCOOL project of the French Agence Nationale de la Recherche [ANR-13-IS04-0002]
- LABEX Cluster of Excellence FIRST-TF within the Program Investissements d'Avenir [ANR-10-LABX-48-01]
- Initial Training Network COMIQ FP7-PEOPLE-2013-ITN Grant [607491]
- Agence Nationale de la Recherche (ANR) [ANR-13-IS04-0002] Funding Source: Agence Nationale de la Recherche (ANR)
We report on the production of cold, state-selected H-2(+) molecular ions in a linear rf trap. The ions are produced by (3 + 1) resonance-enhanced multiphoton ionization (REMPI) of H-2, and sympathetically cooled by laser-cooled Be+ ions. After demonstrating and characterizing the REMPI process, we use photodissociation by a deep UV laser at 213 nm to verify the high vibrational purity of the produced H-2(+) ion samples. Moreover, the large difference between the photodissociation efficiencies of ions created in the v = 0 and v = 1 levels provides a way to detect a v = 0 -> 1 transition. These results pave the way towards high-resolution vibrational spectroscopy of H-2(+) for fundamental metrology applications.
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