Abstract
An experimental study of the long range behavior of the ground state X1Σ+ g of Sr2 is performed by high resolution spectroscopy of asymptotic vibrational levels and the use of available photoassociation data. Ground state levels as high as v’’=60 (outer turning point at 23 Å and 0.1 cm-1 below the asymptote) could be observed by Fourier-transform spectroscopy of fluorescence progressions induced by single frequency laser excitation of the v’=4, J’=9 rovibrational level of the state 21Σ+ u. A precise value of the scattering length for the isotopologue 88Sr2 is derived and transferred to all other isotopic combinations by mass scaling with the given potential. The derived potential together with already published information about the state 21Σ+ u directs to promising optical paths for producing cold molecules in the electronic ground state from an ultracold ensemble of Sr atoms.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
P.G. Mickelson, Y.N. Martinez, A.D. Saenz, S.B. Nagel, Y.C. Chen, T.C. Killian, P. Pellegrini, R. Côté, Phys. Rev. Lett. 95, 223002 (2005)
G. Ferrari, N. Poli, F. Sorrentino, G.M. Tino, Phys. Rev. Lett. 97, 060402 (2006)
A.J. Daley, M.M. Boyd, J. Ye, P. Zoller, Phys. Rev. Lett. 101, 170504 (2008)
M. Takamoto, H. Katori, S.I. Marmo, V.D. Ovsiannikov, V.G. Pal’chikov, Phys. Rev. Lett. 102, 063002 (2009)
M.M. Boyd, A.D. Ludlow, S. Blatt, S.M. Foreman, T. Ido, T. Zelevinsky, J. Ye, Phys. Rev. Lett. 98, 083002 (2007)
S. Blatt et al., Phys. Rev. Lett. 100, 140801 (2008)
A.D. Ludlow et al., Science 319, 1805 (2008)
T. Zelevinsky, S. Kotochigova, J. Ye, Phys. Rev. Lett. 100, 043201 (2008)
T. Zelevinsky, S. Blatt, M.M. Boyd, G.K. Campbell, A.D. Ludlow, J. Ye, Chem. Phys. Chem. 9, 375 (2008)
A. Stein, H. Knöckel, E. Tiemann, Phys. Rev. A 78, 042508 (2008)
G. Gerber, R. Möller, H. Schneider, J. Chem. Phys. 81, 1538 (1984)
J. Mitroy, M.W.J. Bromley, Phys. Rev. A 68, 052714 (2003)
S.G. Porsev, A. Derevianko, J. Exp. Theor. Phys. 102, 195 (2006)
M. Yasuda, T. Kishimoto, M. Takamoto, H. Katori, Phys. Rev. A 73, 011403(R) (2006)
Y.N.M. de Escobar, P.G. Mickelson, P. Pellegrini, S.B. Nagel, A. Traverso, M. Yan, R. Côté, T.C. Killian, Phys. Rev. A 78, 062708 (2008)
S. Stellmer, M.K. Tey, B. Huang, R. Grimm, F. Schreck, Phys. Rev. Lett. 103, 200401 (2009)
Y.N.M. de Escobar, P.G. Mickelson, M. Yan, B.J. DeSalvo, S.B. Nagel, T.C. Killian, Phys. Rev. Lett. 103, 200402 (2009)
O. Allard, C. Samuelis, A. Pashov, H. Knöckel, E. Tiemann, Eur. Phys. J. D 26, 155 (2003)
A. Stein, A. Pashov, P.F. Staanum, H. Knöckel, E. Tiemann, Eur. Phys. J. D 48, 177 (2008)
O. Allard, A. Pashov, H. Knöckel, E. Tiemann, Phys. Rev. A 66, 042503 (2002)
R.J. LeRoy, Can. J. Phys. 52, 246 (1974)
C.C. Lu, T.A. Carlson, F.B. Malik, T.C. Tucker, C.W. Nestor, At. Data Nucl. Data Tables 3, 1 (1971)
C.F. Fischer, At. Data Nucl. Data Tables 4, 301 (1972)
J.F. Stanton, Phys. Rev. A 49, 1698 (1994)
S.G. Porsev, A. Derevianko, Phys. Rev. A 65, 020701(R) (2002)
N.A. Lima, M.J. Caldas, Phys. Rev. B 72, 033109 (2005)
R.J. LeRoy, N.S. Dattani, J.A. Coxon, A.J. Ross, P. Crozet, C. Linton, J. Chem. Phys. 131, 204309 (2009)
K. Bergmann, H. Theuer, B.W. Shore, Rev. Mod. Phys. 70, 1003 (1998)
Author information
Authors and Affiliations
Corresponding author
Electronic supplementary material
Supplementary data
Rights and permissions
About this article
Cite this article
Stein, A., Knöckel, H. & Tiemann, E. The 1S+1S asymptote of Sr2 studied by Fourier-transform spectroscopy. Eur. Phys. J. D 57, 171–177 (2010). https://doi.org/10.1140/epjd/e2010-00058-y
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epjd/e2010-00058-y