Radiation pressure force on cold rubidium atoms due to excitation to a non-cooling hyperfine level

  • Gordana Kregar
  • Neven Šantić
  • Damir Aumiler
  • Ticijana BanEmail author
Regular Article


We study the radiation pressure force exerted on cold 87Rb atoms captured in a magneto-optical trap (MOT) due to resonant excitation of atoms into the non-cooling 5P1 / 2(F e = 2) hyperfine level. We measure the fractional excited population for different MOT parameters such as cooling laser detuning and power, and empirically test the applicability of the Optical Bloch Equations for describing cold atoms in the MOT. We use the effective saturation intensity parameter which enables simple calculation of the fractional excited state population in a multi-level system using a two-level model, and apply it for the radiative force modeling. This approach provides a valuable tool for optical manipulation experiments.


Cold Matter and Quantum Gas 


  1. 1.
    M.H. Anderson, J.R. Ensher, M.R. Matthews, C.E. Wieman, E.A. Cornell, Science 269, 198 (1995)ADSCrossRefGoogle Scholar
  2. 2.
    B. DeMarco, D.S. Jin, Science 285, 1703 (1999)CrossRefGoogle Scholar
  3. 3.
    A.G. Truscott, K.E. Strecker, W.I. McAlexander, G.B. Partridge, R.G. Hulet, Science 291, 2570 (2001)ADSCrossRefGoogle Scholar
  4. 4.
    G. Kregar, N. Šantić, D. Aumiler, H. Buljan, T. Ban, Phys. Rev. A 89, 053421 (2014)ADSCrossRefGoogle Scholar
  5. 5.
    T. Dubček, N. Šantić, D. Jukić, D. Aumiler, T. Ban, H. Buljan, Phys. Rev. A 89, 063415 (2014)ADSCrossRefGoogle Scholar
  6. 6.
    A.M. Steane, M. Chowdhury, C.J. Foot, J. Opt. Soc. Am. B 9, 2142 (1992)ADSCrossRefGoogle Scholar
  7. 7.
    H.J. Metcalf, P. van der Straten, Laser Cooling and Trapping (Springer-Verlag, New York, 1999)Google Scholar
  8. 8.
    D.A. Steck, Rubidium 87 D Line Data,
  9. 9.
    M.H. Shah, H.A. Camp, M.L. Trachy, G. Veshapidze, M.A. Gearba, B.D. De Paola, Phys. Rev. A 75, 053418 (2007)ADSCrossRefGoogle Scholar
  10. 10.
    T.P. Dinneen, C.D. Wallace, K.Y.N. Tan, P.L. Gould, Opt. Lett. 17, 1706 (1992)ADSCrossRefGoogle Scholar
  11. 11.
    G. Reinaudi, T. Lahaye, Z. Wang, D. Guéry-Odelin, Phys. Rev. A 71, 053406 (2005)CrossRefGoogle Scholar
  12. 12.
    E.L. Raab, M. Prentiss, A. Cable, S. Chu, D.E. Pritchard, Phys. Rev. Lett. 59, 2631 (1987)ADSCrossRefGoogle Scholar
  13. 13.
    K. Jooya, N. Musterer, K.W. Madison, J.L. Booth, Phys. Rev. A 88, 063401 (2013)ADSCrossRefGoogle Scholar
  14. 14.
    J. Weiner, V.S. Bagnato, S. Zilio, P.S. Julienne, Rev. Mod. Phys. 71, 1 (1999)ADSCrossRefGoogle Scholar
  15. 15.
    L. Moi, G. Batignani, A. Khanbekyan, K. Khanbekyan, C. Marinelli, E. Mariotti, L. Marmugi, L. Corradi, A. Dainelli, R. Calabrese, G. Mazzocca, L. Tomassetti, P. Minguzzi, Meas. Sci. Technol. 24, 015201 (2013)ADSCrossRefGoogle Scholar
  16. 16.
    K. Lindquist, M. Stephens, C. Wieman, Phys. Rev. A 46, 4082 (1992)ADSCrossRefGoogle Scholar
  17. 17.
    K. Kim, K.H. Lee, M. Heo, H.R. Noh, W. Jhe, Phys. Rev. A 71, 053406 (2005)ADSCrossRefGoogle Scholar
  18. 18.
    W.J. Schwenger, J.M. Higbie, Rev. Sci. Instrum. 83, 083110 (2012)ADSCrossRefGoogle Scholar
  19. 19.
    C.D. Wallace, T.P. Dinneen, K.Y.N. Tan, A. Kumarakrishnan, P.L. Gould, J. Javanainen, J. Opt. Soc. Am. B 11, 703 (1994)ADSCrossRefGoogle Scholar
  20. 20.
    O. Axner, J. Gustafsson, N. Omenetto, J.D. Winefordner, Spectrochim. Acta Part B 59, 1 (2004)ADSCrossRefGoogle Scholar
  21. 21.
    R.W. Boyd, Nonlinear Optics (Academic Press, San Diego, 2003)Google Scholar
  22. 22.
    T. Horrom, S. Balik, A. Lezama, M.D. Havey, E.E. Mikhailov, Phys. Rev. A 83, 053850 (2011)ADSCrossRefGoogle Scholar

Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Gordana Kregar
    • 1
  • Neven Šantić
    • 1
    • 2
  • Damir Aumiler
    • 1
  • Ticijana Ban
    • 1
    Email author
  1. 1.Institute of PhysicsZagrebCroatia
  2. 2.Department of PhysicsUniversity of ZagrebZagrebCroatia

Personalised recommendations