The photoassociative spectroscopy, photoassociative molecule formation, and trapping of ultracold \(\mathsf{^{39}K^{85}Rb}\)

  • D. Wang
  • J. Qi
  • M. F. Stone
  • O. Nikolayeva
  • B. Hattaway
  • S. D. Gensemer
  • H. Wang
  • W. T. Zemke
  • P. L. Gould
  • E. E. Eyler
  • W. C. Stwalley
Article

Abstract.

We have observed the photoassociative spectra of colliding ultracold 39K and 85Rb atoms to produce KRb* in all eight bound electronic states correlating with the 39K (4s) + 85Rb(5p 1/2 and 5p 3/2) asymptotes. These electronically excited KRb* ultracold molecules are detected after their radiative decay to the metastable triplet (a \(^{3}\Sigma^{ + })\) state and (in some cases) the singlet (X \(^{1}\Sigma^{ + })\) ground state. The triplet (a \(^{3}\Sigma^{ + })\) ultracold molecules are detected by two-photon ionization at 602.5 nm to form KRb + , followed by time-of-flight mass spectroscopy. We are able to assign a majority of the spectrum to three states (2(0 + ), 2(0-), 2(1)) in a lower triad of states with similar C 6 values correlating to the K(4s) + Rb (5p 1/2) asymptote; and to five states in an upper triad of three states (3(0 + ), 3(0-), 3(1)) and a dyad of two states (4(1), 1(2)), with one set of similar C 6 values within the upper triad and a different set of similar C 6 values within the dyad. We are also able to make connection with the short-range spectra of Kasahara et al. [J. Chem. Phys. 111, 8857 (1999)], identifying three of our levels as v = 61, 62 and 63 of the 1\(^{1}\Pi \sim \) 4(1) state they observed. We also argue that ultracold photoassociation to levels between the K(4s) + Rb (5p 3/2) and K(4s) + Rb (5p 1/2) asymptotes may be weakly or strongly predissociated and therefore difficult to observe by ionization of a \(^{3}\Sigma^{ + }\) (or X \(^{1}\Sigma^{ + })\) molecules; we do know from Kasahara et al. that levels of the 1\(^{1}\Pi \sim \) 4(1) and 2\(^{1}\Pi \sim \) 5(1) states in the intra-asymptote region are predissociated. A small fraction (\(\le \)1/3) of the triplet (a \(^{3}\Sigma^{ + })\) ultracold molecules formed are trapped in the weak magnetic field of our magneto-optical trap (MOT).

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J. Weiner, V.S. Bagnato, S.C. Zilio, P.S. Julienne, Rev. Mod. Phys. 71, 1 (1999)CrossRefGoogle Scholar
  2. 2.
    W.D. Phillips, Rev. Mod. Phys. 70, 721 (1998)CrossRefGoogle Scholar
  3. 3.
    S. Chu, Rev. Mod. Phys. 70, 685 (1998)CrossRefGoogle Scholar
  4. 4.
    C.N. Cohen-Tannoudji, Rev. Mod. Phys. 70, 707 (1998)CrossRefGoogle Scholar
  5. 5.
    W. Ketterle, Rev. Mod. Phys. 74, 1131 (2002)CrossRefGoogle Scholar
  6. 6.
    E.A. Cornell, C.E. Wieman, Rev. Mod. Phys. 74, 875 (2002)CrossRefGoogle Scholar
  7. 7.
    A. Fioretti, D. Comparat, A. Crubellier, O. Dulieu, F. Masnou-Seeuws, P. Pillet, Phys. Rev. Lett. 80, 4402 (1998)CrossRefGoogle Scholar
  8. 8.
    J.T. Bahns, P.L. Gould, W.C. Stwalley, Adv. At. Mol. Opt. Phys. 42, 171 (2000)Google Scholar
  9. 9.
    W.C. Stwalley, H. Wang, J. Mol. Spectrosc. 195, 194 (1999)CrossRefGoogle Scholar
  10. 10.
    F. Masnou-Seeuws, P. Pillet, Adv. At. Mol. Opt. Phys. 47, 53 (2001)Google Scholar
  11. 11.
    U. Schlöder, C. Silber, C. Zimmermann, Appl. Phys. B. 73, 801 (2001)CrossRefGoogle Scholar
  12. 12.
    T. Takekoshi, B.M. Patterson, R.J. Knize, Phys. Rev. Lett. 81, 5105 (1998)Google Scholar
  13. 13.
    N. Vanhaecke, W. de Souza Melo, B.L. Tolra, D. Comparat, P. Pillet, Phys. Rev. Lett. 89, 063001 (2002)CrossRefGoogle Scholar
  14. 14.
    J. Herbig, T. Kramer, M. Mark, T. Weber, C. Chin, H.-C. Nägerl, R. Grimm, Science 301, 1510 (2003)Google Scholar
  15. 15.
    C.C. Chin, A.J. Kerman, V. Vuletic, S. Chu, Phys. Rev. Lett. 90, 033201 (2003)Google Scholar
  16. 16.
    S. Dürr, T. Volz, A. Marie, G. Rempe, Phys. Rev. Lett. 92, 020406 (2004)Google Scholar
  17. 17.
    K. Xu, T. Mukaiyama, J.R. Abo-Shaeer, J.K. Chin, D.E. Miller, W. Ketterle, Phys. Rev. Lett. 91, 210402 (2003)Google Scholar
  18. 18.
    S. Jochim, M. Bartenstein, A. Altmeyer, G. Hendl, S. Riedl, C. Chin, J. Hecker Denschlag, R. Grimm, Science 302, 2101 (2003)CrossRefGoogle Scholar
  19. 19.
    J. Cubizolles, J. Bourdel, S.J.J.M.F. Kokkelmans, G.V. Shlyapnikov, C. Salomon, Phys. Rev. Lett. 91, 240401 (2003)Google Scholar
  20. 20.
    K.E. Strecker, G.B. Partridge, R.G. Hulet, Phys. Rev. Lett. 91, 080406 (2003)CrossRefGoogle Scholar
  21. 21.
    M.W. Zwierlein, C.A. Stan, C.H. Schunk, S.M.F. Raupach, S. Gupta, Z. Hadzibabic, W. Ketterle, Phys. Rev. Lett. 91, 250401 (2003)Google Scholar
  22. 22.
    C.A. Regal, C. Ticknor, J.L. Bohn, D.S. Jin, Nature 424, 47 (2003)CrossRefGoogle Scholar
  23. 23.
    M. Greiner, C.A. Regal, D.S. Jin, Nature 426, 537 (2003)CrossRefGoogle Scholar
  24. 24.
    D.S. Petrov, C. Salomon, G.V. Shlyapnikov, Phys. Rev. Lett. 93, 090404 (2004)CrossRefGoogle Scholar
  25. 25.
    W.C. Stwalley, in State-to-State Chemistry, edited by P.R. Brooks, E.F. Hayes, Am. Chem. Soc. Symp. Ser. 56, 247 (1977)Google Scholar
  26. 26.
    W.C. Stwalley, Can. J. Chem. 82, 1 (2004)CrossRefGoogle Scholar
  27. 27.
    W.C. Stwalley, Eur. J. Phys. D 31, 221 (2004)Google Scholar
  28. 28.
    H. Wang, W.C. Stwalley, J. Chem. Phys. 108, 5767 (1998)CrossRefGoogle Scholar
  29. 29.
    A.J. Kerman, J.M. Sage, S. Sainis, T. Bergeman, D. DeMille, Phys. Rev. Lett. 92, 033004 (2004)CrossRefGoogle Scholar
  30. 30.
    A.J. Kerman, J.M. Sage, S. Sainis, T. Bergeman, D. DeMille, Phys. Rev. Lett. 92, 153001 (2004)Google Scholar
  31. 31.
    T. Bergeman, A.J. Kerman, J. Sage, S. Sainis, D. DeMille, Eur. J. Phys. D 31, 179 (2004)Google Scholar
  32. 32.
    J.P. Shaffer, W. Chalupczak, N.P. Bigelow, Phys. Rev. Lett. 82, 1224 (1999)CrossRefGoogle Scholar
  33. 33.
    H. Wang, Bull. Am. Phys. Soc. 48, J1.025 (2003)Google Scholar
  34. 34.
    M.W. Mancini, G.D. Telles, A.R.L. Caires, V.S. Bagnato, L.G. Marcassa, Phys. Rev. Lett. 92, 133203 (2004)CrossRefGoogle Scholar
  35. 35.
    S. Inouye, J. Goldwin, M.L. Olsen, C. Ticknor, J.L. Bohn, D.S. Jin, Phys. Rev. Lett. 93, 183201 (2004)CrossRefGoogle Scholar
  36. 36.
    C.A. Stan, M.W. Zwierlein, C.H. Schunck, S.M.F. Raupach, W. Ketterle, Phys. Rev. Lett. 93, 143001 (2004)CrossRefGoogle Scholar
  37. 37.
    J.D. Weinstein, R. DeCarvalho, T. Guillet, B. Friedrich, J.M. Doyle, Nature 395, 148 (1998)CrossRefGoogle Scholar
  38. 38.
    H.L. Bethlem, G. Berden, F.M.H. Crompvoets, R.T. Jongma, A.J.A. Van Roij, G. Meijer, Nature 406, 491 (2000)CrossRefGoogle Scholar
  39. 39.
    F.M.H. Crompvoets, H.L. Bethlem, R.T. Jongma, G. Meijer, Nature 411, 174 (2001)CrossRefGoogle Scholar
  40. 40.
    D. Wang, J. Qi, M.F. Stone, O. Nikolayeva, H. Wang, B. Hattaway, S.D. Gensemer, P.L. Gould, E.E. Eyler, W.C. Stwalley, preprint arXiv:physics/0410220Google Scholar
  41. 41.
    J.M. Walter, S. Barratt, Proc. Roy. Soc. Lond. 119, 257 (1928)Google Scholar
  42. 42.
    K.P. Huber, G. Herzberg, Molecular Spectra and Molecular Structure IV. Constants of Diatomic Molecules (Van Nostrand, NY, 1979)Google Scholar
  43. 43.
    J.C. Whitehead, R. Grice, Faraday Discuss. Chem. Soc. 55, 320 (1973)CrossRefGoogle Scholar
  44. 44.
    R. Beuc, S. Milosevic, G. Pichler, J. Phys. B 17, 739 (1984)Google Scholar
  45. 45.
    H. Skenderović, R. Beuc, T. Ban, G. Pichler, Eur. Phys. J. D 19, 49 (2002)CrossRefGoogle Scholar
  46. 46.
    A.J. Ross, C. Effantin, P. Crozet, E. Boursey, J. Phys. B 23, L247 (1990)Google Scholar
  47. 47.
    N. Okada, S. Kasahara, T. Ebi, M. Baba, H. Katô, J. Chem. Phys. 105, 3458 (1996)CrossRefGoogle Scholar
  48. 48.
    S. Kasahara, C. Fujiwara, N. Okada, H. Katô, J. Chem. Phys. 111, 8857 (1999)CrossRefGoogle Scholar
  49. 49.
    C. Amiot, J. Verges, C. Effantin, J. d’Incan, Chem. Phys. Lett. 321, 21 (2000)CrossRefGoogle Scholar
  50. 50.
    C. Amiot, J. Verges, J. Chem. Phys. 112, 7068 (2000)CrossRefGoogle Scholar
  51. 51.
    C. Amiot, J. Verges, J. d’Incan, C. Effantin, Chem. Phys. Lett. 315, 55 (1999)CrossRefGoogle Scholar
  52. 52.
    C. Amiot, J. Mol. Spectrosc. 203, 126 (2000)CrossRefGoogle Scholar
  53. 53.
    Y. Lee, C. Yun, Y. Yoon, T. Kim, B. Kim, J. Chem. Phys. 115, 7413 (2001)CrossRefGoogle Scholar
  54. 54.
    W.C. Stwalley, J. Chem. Phys. (2004, submitted)Google Scholar
  55. 55.
    S. Rousseau, A.R. Allouche, M. Aubert-Frécon, J. Mol. Spectrosc. 203, 235 (2000)CrossRefGoogle Scholar
  56. 56.
    S.J. Park, Y.J. Choi, Y.S. Lee, G.-H. Jeung, Chem. Phys. 257, 135 (2000)CrossRefGoogle Scholar
  57. 57.
    S. Kotochigova, P.S. Julienne, E. Tiesinga, Phys. Rev. A 68, 022501 (2003)CrossRefGoogle Scholar
  58. 58.
    A. Derevianko, J.F. Babb, A. Dalgarno, Phys. Rev. A 63, 052704 (2001)CrossRefGoogle Scholar
  59. 59.
    S.G. Porsev, A. Derevianko, J. Chem. Phys. 119, 844 (2003)CrossRefGoogle Scholar
  60. 60.
    W.T. Zemke, W.C. Stwalley, J. Chem. Phys. 120, 88 (2004)CrossRefGoogle Scholar
  61. 61.
    W.T. Zemke, R. Côté, W.C. Stwalley, Phys. Rev. A (2004, to be submitted)Google Scholar
  62. 62.
    M. Marinescu, H.R. Sadeghpour, Phys. Rev. A 59, 390 (1999)CrossRefGoogle Scholar
  63. 63.
    W.T. Zemke, W.C. Stwalley, Phys. Rev. A (2004, to be submitted)Google Scholar
  64. 64.
    M. Movre, R. Beuc, Phys. Rev. A 31, 2957 (1984)CrossRefGoogle Scholar
  65. 65.
    B. Bussery, Y. Achkar, M. Aubert-Frécon, Chem. Phys. 116, 319 (1987)CrossRefGoogle Scholar
  66. 66.
    M.T. Djerad, F. Gounand, A. Kumar, M. Cheret, J. Chem. Phys. 97, 8334 (1992)CrossRefGoogle Scholar
  67. 67.
    C. Gabbanini, M. Biagini, S. Gozzini, A. Lucchesini, A. Kopystynska, J. Quant. Spectrosc. Radiat. Transfer 47, 103 (1992)CrossRefGoogle Scholar
  68. 68.
    C. Vadla, S. Knezovic, M. Movre, J. Phys. B 25, 1337 (1992)Google Scholar
  69. 69.
    L.G. Marcassa, G.D. Telles, S.R. Muniz, V.S. Bagnato, Phys. Rev. A 63, 013413 (2001)CrossRefGoogle Scholar
  70. 70.
    G. Ferrari, M. Inguscio, W. Jastrzebski, G. Modugno, G. Roati, A. Simoni, Phys. Rev. Lett. 89, 053202 (2002)CrossRefGoogle Scholar
  71. 71.
    J. Goldwin, S.B. Papp, B. DeMarco, D.S. Jin, Phys. Rev. A 65, 021402 (2002)CrossRefGoogle Scholar
  72. 72.
    G. Modugno, G. Roati, F. Riboli, F. Ferlaino, R.J. Brecha, M. Inguscio, Science 297, 2240 (2002)CrossRefGoogle Scholar
  73. 73.
    M.S. Stone, M.S. thesis, SUNY Stony Brook 2001Google Scholar
  74. 74.
    H. Wang, P.L. Gould, W.C. Stwalley, Phys. Rev. A 53, R1216 (1996)Google Scholar
  75. 75.
    W. Ketterle, K. Davis, M. Joffe, A. Martin, D.E. Pritchard, Phys. Rev. Lett. 70, 2253 (1993)CrossRefGoogle Scholar
  76. 76.
    G. Barwood, P. Gill, W.R.C. Rowley, Appl. Phys. B 53, 142 (1991)CrossRefGoogle Scholar
  77. 77.
    M. Pichler, H.M. Chen, H. Wang, W.C. Stwalley, A.J. Ross, F. Martin, M. Aubert-Frécon, I. Russier-Antoine, J. Chem. Phys. 118, 7837 (2003)CrossRefGoogle Scholar
  78. 78.
    R.J. Le Roy, R.B. Bernstein, J. Chem. Phys. 52, 3869 (1970)CrossRefGoogle Scholar
  79. 79.
    W.C. Stwalley, Chem. Phys. Lett. 6, 241 (1970)CrossRefGoogle Scholar
  80. 80.
    C. Ryu, R.S. Freeland, R. Wynar, D. Comparat, D.J. Heinzen, abstract for Cold Molecules 2002, Les Houches, France (unpublished); also R.S. Freeland, Ph.D. thesis, University of Texas, pp. 112-122 (2001)Google Scholar
  81. 81.
    H. Wang, P.L. Gould, W.C. Stwalley, Phys. Rev. Lett. 80, 476 (1998)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  • D. Wang
    • 1
  • J. Qi
    • 1
  • M. F. Stone
    • 1
  • O. Nikolayeva
    • 2
  • B. Hattaway
    • 1
  • S. D. Gensemer
    • 3
  • H. Wang
    • 4
  • W. T. Zemke
    • 5
  • P. L. Gould
    • 1
  • E. E. Eyler
    • 1
  • W. C. Stwalley
    • 1
  1. 1.Department of PhysicsUniversity of ConnecticutStorrsUSA
  2. 2.Department of PhysicsUniversity of LatviaRigaLatvia
  3. 3.Department of PhysicsUniversity of AmsterdamAmsterdamThe Netherlands
  4. 4.Electronics and Photonics LaboratoryThe Aerospace Corporation, M2-253El SegundoUSA
  5. 5.Department of ChemistryWartburg CollegeWaverlyUSA

Personalised recommendations