Ultracold molecular hydrogen ions in a linear radiofrequency trap: Novel systems for molecular frequency metrology

Ultracold molecular hydrogen ions in a linear radiofrequency trap: Novel systems for molecular frequency metrology

We have measured the ro-vibrational infrared transition (v = 0, J = 2) → (v = 4, J = 1) in ultracold HD + molecular ions embedded inside Be + Coulomb crystals, by 1+1 REMPI spectroscopy. The molecular ions, trapped in a linear radiofrequency trap, were cooled to temperatures of few tens of mK, via s...

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Bibliographische Detailangaben
Hauptverfasser: Roth, B., Daerr, H., Koelemeij, J., Nevsky, A., Schiller, S.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Cooling
Fluorescence
High definition video
Ion beams
Ions
Laser beams
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Zusammenfassung:We have measured the ro-vibrational infrared transition (v = 0, J = 2) → (v = 4, J = 1) in ultracold HD + molecular ions embedded inside Be + Coulomb crystals, by 1+1 REMPI spectroscopy. The molecular ions, trapped in a linear radiofrequency trap, were cooled to temperatures of few tens of mK, via sympathetic cooling using laser-cooled Be + ions. For detection, we have used secular excitation of the HD + ions to monitor their loss rate. The transition frequency agrees with a theoretical prediction.