Dark resonances for ground-state transfer of molecular quantum gases

M. Mark, J.G. Danzl, E. Haller, M. Gustavsson, N. Bouloufa, O. Dulieu, H. Salami, T. Bergeman, H. Ritsch, R. Hart, H. Nägerl, Applied Physics B: Lasers and Optics 95 (2009) 219–225.


Journal Article | Published | English
Author
Mark, Manfred; Danzl, Johann GIST Austria ; Haller, Elmar; Gustavsson, Mattias; Bouloufa, Nadia; Dulieu, Olivier; Salami, Houssam; Bergeman, Thomas; Ritsch, Helmut; Hart, Russell; Nägerl, Hanns
Abstract
One possible way to produce ultra-cold, high-phase-space-density quantum gases of molecules in the rovibronic ground state is given by molecule association from quantum-degenerate atomic gases on a Feshbach resonance and subsequent coherent optical multi-photon transfer into the rovibronic ground state. In ultra-cold samples of Cs2 molecules, we observe two-photon dark resonances that connect the intermediate rovibrational level |v=73,J=2 with the rovibrational ground state |v=0,J=0 of the singlet X 1 ∑ g + ground-state potential. For precise dark resonance spectroscopy we exploit the fact that it is possible to efficiently populate the level |v=73,J=2 by two-photon transfer from the dissociation threshold with the stimulated Raman adiabatic passage (STIRAP) technique. We find that at least one of the two-photon resonances is sufficiently strong to allow future implementation of coherent STIRAP transfer of a molecular quantum gas to the rovibrational ground state |v=0,J=0.
Publishing Year
Date Published
2009-05-01
Journal Title
Applied Physics B: Lasers and Optics
Acknowledgement
We are indebted to R. Grimm for generous support and we thank E. Tiemann for valuable discussions and C. Amiot for providing the FTS data of LAC on Cs2. We gratefully acknowledge funding by the Austrian Ministry of Science and Research (BMWF) and the Austrian Science Fund (FWF) in the form of a START prize grant and by the European Science Foundation (ESF) in the framework of the EuroQUAM collective research project QuDipMol. R.H. acknowledges support by the European Union in the form of a Marie Curie International Incoming Fellowship (IIF). The work at Stony Brook was supported by the US NSF, under grant PHY0652459.
Volume
95
Issue
2
Page
219 - 225
IST-REx-ID

Cite this

Mark M, Danzl JG, Haller E, et al. Dark resonances for ground-state transfer of molecular quantum gases. Applied Physics B: Lasers and Optics. 2009;95(2):219-225. doi:10.1007/s00340-009-3407-1
Mark, M., Danzl, J. G., Haller, E., Gustavsson, M., Bouloufa, N., Dulieu, O., … Nägerl, H. (2009). Dark resonances for ground-state transfer of molecular quantum gases. Applied Physics B: Lasers and Optics, 95(2), 219–225. https://doi.org/10.1007/s00340-009-3407-1
Mark, Manfred, Johann G Danzl, Elmar Haller, Mattias Gustavsson, Nadia Bouloufa, Olivier Dulieu, Houssam Salami, et al. “Dark Resonances for Ground-State Transfer of Molecular Quantum Gases.” Applied Physics B: Lasers and Optics 95, no. 2 (2009): 219–25. https://doi.org/10.1007/s00340-009-3407-1.
M. Mark et al., “Dark resonances for ground-state transfer of molecular quantum gases,” Applied Physics B: Lasers and Optics, vol. 95, no. 2, pp. 219–225, 2009.
Mark M, Danzl JG, Haller E, Gustavsson M, Bouloufa N, Dulieu O, Salami H, Bergeman T, Ritsch H, Hart R, Nägerl H. 2009. Dark resonances for ground-state transfer of molecular quantum gases. Applied Physics B: Lasers and Optics. 95(2), 219–225.
Mark, Manfred, et al. “Dark Resonances for Ground-State Transfer of Molecular Quantum Gases.” Applied Physics B: Lasers and Optics, vol. 95, no. 2, Springer, 2009, pp. 219–25, doi:10.1007/s00340-009-3407-1.
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