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Femtosecond Laser Ionisation Mass Spectrometry

  • Ravi P. Singhal

Abstract

Observation of a process requires a probe whose duration is of the order of or less than the characteristic timescale of the event. This paradigm has guided the progress in the study of dynamic processes and has been the catalyst in attempts to produce ever-shorter probes. In many instances, the timescale associated with transition phenomena can be of the order of the period of optical radiation - for 500 nm, the period is 1.7 fs (1 fs = 10-15s). Molecular vibrations typically involve energies of 0.1 eV and have a timescale of tens of fs. Molecular rotations are 100 times slower still and may be studied with ps (1 ps = 10-12s) pulses. The situation holds generally in disparate fields: for example, phase transitions in highly excited semiconductors, impulsive phonon generation in solids, biological changes at molecular level etc. proceed on the sub-ps timescale.

Keywords

Laser Pulse Femtosecond Laser Femtosecond Laser Pulse Laser Power Density Coulomb Explosion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Assion, A., Baumert, T., Bergt, M., Brixner, T., Kiefer, B., Seyfried, V., Strehle, M., andGerber, G., 1998, Science 282:919.CrossRefGoogle Scholar
  2. Bergt, M, Brixner, T., Kiefer, B., Strehle, M., and Gerber, G., 1999, J. Phys. Chem. A103:10381.CrossRefGoogle Scholar
  3. Brumer, P., and Shapiro, M., 1995, Scientific American March, p. 34.Google Scholar
  4. Cornaggia, C.,1996, Phys. Rev. A54:R2555.CrossRefGoogle Scholar
  5. Fang, X., Ledingham, K.W.D., Graham, P., Smith, D.J., McCanny, T., Singhal, R.P.,Langley, A.J., and Taday, P.F., 1999, Rapid Comm. Mass Spect. 13:1390.CrossRefGoogle Scholar
  6. Graham, P., Ledingham, K.W.D., Singhal, R.P., McCanny, T., Hankin, S.M., Fang, X.,Smith, D.J., Kosmidid, C, Tzallas, P., Langley, A.J., and Taday, P.F.,1999, J. Phys. B: At.Mol. Opt. Phys. 32:5557.CrossRefGoogle Scholar
  7. Graham P., 2000, Ph.D Thesis. University of Glasgow, Glasgow, Scotland.Google Scholar
  8. He, C., Basier, J.N., and Becher, C.H., 1997, Nature 385:797.CrossRefGoogle Scholar
  9. Harada, H., Shimizu, S., Yatsuhashi, T., Sakabe, S., Izawa, Y., and Nakashima, N., 2001,Chem. Phys. Lett. 342:563.CrossRefGoogle Scholar
  10. Itakura, R., Watanabe, J., Hashikawa, A., and Yamanouti, K., 2001, J. Chem. Phys. 114:5598.CrossRefGoogle Scholar
  11. Judson, R.S., and Rabitz, H., 1992, Phys. Rev. Lett. 68:1500.CrossRefGoogle Scholar
  12. Kilic H., 1997, Ph.D. Thesis. University of Glasgow, Glasgow, Scotland.Google Scholar
  13. Lambropoulos, P., 1985, Phys. Rev. Lett. 55:2141.CrossRefGoogle Scholar
  14. Langley, A.J., Divall, E.J., Girard, N., Hooker, C.J., Hutchinson, M.H.R., Lecot, A., Marshall,D., Neely, D., and Taday, P.F., 1999, Rutherford Appleton Laboratory Report No. RAL-TR-1999-062. Chilton, Didcot, U.K.Google Scholar
  15. Perry, M.D., Landen, O.L., Szoke, A., and Campbell, E.M., 1988, Physical Review A 37:747.CrossRefGoogle Scholar
  16. Protopapas, M., Keitel, C.H., and Knight, P.L., 1997, Rep. Prog. Phys. 60:389.CrossRefGoogle Scholar
  17. Shank, C.V, 1983, Science 219:1027.CrossRefGoogle Scholar
  18. Smith, D.J., 1998, Ph.D Thesis. University of Glasgow, Glasgow, Scotland.Google Scholar
  19. Svelto, O., 1989, Principles of Lasers. Plenum Press, New YorkGoogle Scholar
  20. Taday, P.F., Mohammed, I., Langley, A.J., Ross, I.N., Codling, K., Ledingham, K.W.D.,Newell, W.R., Preston, S., Riley, D., and Williams, I., 1998, Rutherford AppletonLaboratory Report No. RAL-TR-1998-080. Chilton, Didcot, U.K.Google Scholar
  21. Tasker, A.D., Robson, L., Hankin, S.M., Ledingham, K.W.D., Singhal, R.P., Fang, X.,McCanny, T., Kosmidis, C, Tzallas, P., Langley, A.J., Taday, P.F., and Divall, E.J., 2000,Rutherford Appleton Laboratory Report No. RAL-TR-2000-034. Chilton, Didcot, U.K.Google Scholar
  22. Towrie, M., Drysdale, S.L.T., Jennings, R., Land, A.P., Ledingham, K.W.D., McCombes,P.T., Singhal, R.P., and Smyth, M.H.C., 1990, Inter. Jour. Mass. Spect. Ion Proc. 96:309.CrossRefGoogle Scholar
  23. Tzallas, P., Kosmidis, C, Graham, P., Ledingham, K.W.D., McCanny, M., Hankin, S.M.,Singhal, R.P., Taday, P.F., and Langley, A.J., 2000, Chem. Phys. Lett. 332:23.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • Ravi P. Singhal
    • 1
  1. 1.Department of Physics and AstronomyUniversity of GlasgowGlasgowScotland

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