The European Physical Journal D

, Volume 42, Issue 2, pp 217–220 | Cite as

Isotopomer selective optimization of 39K85Rb+ and 41K87Rb+ using optimal control

  • A. MerliEmail author
  • F. Sauer
  • L. Wöste
  • A. Lindinger
Molecular Physics and Chemical Physics


We report on isotope selective three-photon ionization of two isotopomers of KRb by applying evolution strategies. The particularity of this experiment is based on the high resolution phase and amplitude modulation of the fs-laser pulses provided by a 2 × 640 pixel pulse shaper. The optimization in a closed feedback loop performed with spectrally broad pulses centered at 840 nm shows high enhancements of one isotopomer at the expense of the other isotopomer and vice versa. From the optimal laser field we aim to gain details about the selective ionization sequence and the wavepacket evolution on the involved vibrational states.


82.53.-k Femtochemistry 28.60.+s Isotope separation and enrichment 33.80.Rv Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states) 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. R.S. Judson, H. Rabitz, Phys. Rev. Lett. 68, 1500 (1992) CrossRefADSGoogle Scholar
  2. I. Rechenberg, Evolutionsstrategie (Stuttgart, 1994) Google Scholar
  3. C.J. Bardeen, V.V. Yakovlev, K.R. Wilson, A.D. Carpenter, P.M. Weber, W.S. Warren, Chem. Phys. Lett. 280, 151 (1997) CrossRefADSGoogle Scholar
  4. A. Assion, T. Baumert, M. Bergt, T. Brixner, B. Kiefer, V. Seyfried, M. Strehle, G. Gerber, Science 282, 919 (1998) CrossRefADSGoogle Scholar
  5. T.C. Weinacht, J. Ahn, P.H. Bucksbaum, Nature 397, 233 (1999) CrossRefADSGoogle Scholar
  6. A. Glass, T. Rozgonyi, T. Feurer, R. Sauerbrey, G. Szabo, Appl. Phys. B 71, 1432 (2000) Google Scholar
  7. Š. Vajda, A. Bartelt, E.C. Kaposta, T. Leisner, C. Lupulescu, S. Minemoto, P. Rosendo-Francisco, L. Wöste, Chem. Phys. 267, 231 (2001) CrossRefADSGoogle Scholar
  8. T. Brixner, H. Damrauer, G. Gerber, Adv. Mol. Opt. Phys. 46, 1 (2001) CrossRefGoogle Scholar
  9. C. Daniel, J. Full, L. Gonzales, C. Lupulescu, J. Manz, A. Merli, Š. Vajda, L. Wöste, Science 299, 536 (2003) CrossRefADSGoogle Scholar
  10. A. Lindinger, C. Lupulescu, F. Vetter, M. Plewicki, S.M. Weber, A. Merli, L. Wöste, J. Chem. Phys. 122, 024312 (2005) CrossRefADSGoogle Scholar
  11. S.A. Rice, Science 258, 412 (1992) CrossRefADSGoogle Scholar
  12. W.S. Warren, H. Rabitz, M. Dahleh, Science 259, 1581 (1993) CrossRefMathSciNetADSGoogle Scholar
  13. K. Sundermann, R. de Vivie de Riedle, App. Phys. B 71, 285 (2000) ADSGoogle Scholar
  14. H. Rabitz, R. de Vivie-Riedle, M. Motzkus, K. Kompa, Science 288, 825 (200) Google Scholar
  15. B. Schäfer-Bung, R. Mitrić, V. Bonačić-Koutecký, A. Bartelt, C. Lupulescu, A. Lindinger, Š. Vajda, S.M. Weber, L. Wöste, J. Phys. Chem. A 108, 4175 (2004) CrossRefGoogle Scholar
  16. A. Lindinger, C. Lupulescu, M. Plewicki, F. Vetter, A. Merli, S. Weber, L. Wöste, Phys. Rev. Lett. 93, 033001 (2004) CrossRefADSGoogle Scholar
  17. A. Lindinger, F. Vetter, C. Lupulescu, M. Plewicki, S. Weber, A. Merli, L. Wöste, Chem. Phys. Lett. 397, 123 (2004) CrossRefADSGoogle Scholar
  18. T. Leininger, G.H. Jeung, Phys. Rev. A 51, 1929 (1995) CrossRefADSGoogle Scholar
  19. S.J. Park, Y.J. Choi, Y.S. Lee, G.H. Jeung, Chem. Phys. 257, 135 (2000) CrossRefADSGoogle Scholar
  20. M.M. Hurley, L.F. Pacios, P.A. Christiansen, R.B. Ross, W.C. Ermler, J. Chem. Phys. 84, 6840 (1986) CrossRefADSGoogle Scholar
  21. Y. Lee, C. Yun, Y. Yoon, T. Kim, B. Kim, J. Chem. Phys. 115, 7413 (2001) CrossRefADSGoogle Scholar
  22. Y. Lee, Y. Yoon, B. Kim, L. Li, S. Lee, J. Chem. Phys. 120, 6551 (2004) CrossRefADSGoogle Scholar
  23. M. Wefers, K. Nelson, J. Opt. Soc. Am. B 12, 1343 (1995) ADSCrossRefGoogle Scholar
  24. O.E. Martinez, IEEE J. Quantum Electron. 23, 59 (1987) CrossRefADSGoogle Scholar
  25. A. Monmayrant, B. Chatel, Rev. Sci. Inst. 75, 2668 (2004) CrossRefADSGoogle Scholar
  26. A. Monmayrant, B. Chatel, B. Girard, Opt. Lett. 31, 410 (2006) CrossRefADSGoogle Scholar
  27. A. Monmayrant, B. Chatel, B. Girard, Phys. Rev. Lett. 96, 103002 (2006) CrossRefADSGoogle Scholar
  28. A. Bartels, S. Minemoto, C. Lupulescu, Š. Vajda, L. Wöste, Eur. Phys. J. D 16, 127 (2001) CrossRefADSGoogle Scholar
  29. M. Leibscher, I.S. Averbukh, Phys. Rev. A 63, 043407 (2001) CrossRefADSGoogle Scholar

Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  1. 1.Institut für Experimentalphysik, Freie Universität BerlinBerlinGermany

Personalised recommendations