The Electron pp 295-310 | Cite as

Experiments on the Interaction of Intense Fields with Electrons

  • A. Weingartshofer
Chapter
Part of the Fundamental Theories of Physics book series (FTPH, volume 45)

Abstract

This is an attempt to present an overview of currently performed experiments that investigate some fundamental aspects of the interaction of electrons with intense electromagnetic fields (laser and microwave). The electrons are free or in a continuum state of the atom or ion.

Keywords

Laser Field Intense Laser Rydberg Atom Multiphoton Ionization Intense Laser Field 
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.
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Morellec, J., Normand, D. and Petite, G. (1982) Nonresonant multiphoton ionization of atoms, Adv. At. Mol. Phys. 18, 97–164.ADSCrossRefGoogle Scholar
  2. 2.(a)
    Agostini, P. and Petite, G. (1989) Shifts in atomic understanding, Physics World, September, 47–50.Google Scholar
  3. 2.(b)
    Crance, M. (1990) Nonperturbative ac Stark shifts in hydrogen atoms, J. Opt. Soc. Am. B7, 449–455.ADSGoogle Scholar
  4. 3.(a)
    Cooke, W. E. and Mcllrath, T. J., eds. (1987) Feature on multielectron excitation in atoms, J. Opt. Soc. Am. B4, 705–862.Google Scholar
  5. 3.(b)
    Kulander, K. and L’Huillier, A. eds. (1990) Feature on high-order processes in intense laser fields, J. Opt. Soc. Am. B7, 403–685.Google Scholar
  6. Bandrauk, A. D. ed (1988) Atomic and molecular processes with short intense laser pulses, Plenum Press.Google Scholar
  7. 4.(a)
    Mittleman, M. H. (1982) Introduction to the theory of laser-atom interactions, Plenum Press, New York.CrossRefGoogle Scholar
  8. 4.(b)
    Chin, S. L. and Lambropoulos , P. eds. (1984) Multiproton ionization of Atoms, Academic Press.Google Scholar
  9. 4.(c)
    Faisal, F. H. M. (1987) Theory of Multiphoton Processes, Plenum Press, New York.Google Scholar
  10. 4.(d)
    (d) Agostini, P. and Petite, G. (1988) Photoelectric effect under strong irradiation, Contemp. Phys. 1, 57–77.ADSCrossRefGoogle Scholar
  11. 5.
    Miloni, P. W. and Ackerhalt, J. R. (1989) Keldysh approximation, A2, and strong-field ionization, Phys. Rev. A 39, 1139–1148.ADSGoogle Scholar
  12. 6.(a)
    Gallagher, T. F. (1988) Above-threshold ionization in low-frequency limit, Phys. Rev. Lett. 61, 2304–07.ADSCrossRefGoogle Scholar
  13. 6.(b)
    Fu, P., Scholz, T. J., Hettema, J. M. and Gallagher, T. F. (1990) Ionization of Rydberg atoms by a circularly polarized Microwave field, Phys. Rev. Lett. 64, 511–14.ADSCrossRefGoogle Scholar
  14. 7.
    Corkum, P. B., Burnett, N. H. and Brunei F. (1989) Above-threshold ionization in long-wavelength limit, Phys. Rev. Lett. 62, 1259–62.ADSCrossRefGoogle Scholar
  15. 8.
    Cooke, W. E. and Shakeshaft, R. (1991) Nonradiative transfer of momentum from an electromagnetic wave to a charged particle, Phys. Rev. A 43, 251–57.ADSCrossRefGoogle Scholar
  16. 9.
    Raman, N. K. and Guidotti, C. eds. (1984) Collisions and half-collisions with lasers, Harwood Academic Publishers.Google Scholar
  17. 10.
    Rosenberg, L. (1981) Intermediate and strong-coupling approximations for scattering in a laser field, Phys. Rev. A 23, 2283–92.ADSGoogle Scholar
  18. 11.(a)
    Weingartshofer, A., Holmes, J. K. , Caudle, G. , Clarke, E. M. and Krüger, H. (1977) Direct observation of multiphoton processes in laser-induced free-free transitions, Phys. Rev. Lett. 39, 269–70.ADSCrossRefGoogle Scholar
  19. 11.(b)
    See also Weingartshofer, A. and Jung, C. (1984) Multiphoton free-free transitions, Ref. 4b pp. 155–87.Google Scholar
  20. 12.
    Krüger, H. and Jung, Ch. (1978) Low-frequency approach to multiphoton free-free transitions induced by realistic laser pulses, Phys. Rev. A 17, 1706–12.ADSGoogle Scholar
  21. 13.
    Kroll, N. M., and Watson, K. M. (1973) Charged-particle scattering in the presence of a strong electromagnetic wave, Phys. Rev. A 8, 804–09.ADSGoogle Scholar
  22. 14.
    Becker, W., Long, S. and Mclver, J. K. (1990) Short-range potential model for multiphoton detachment of the H- ion, Phys. Rev. A 42, 4416–19.ADSGoogle Scholar
  23. 15.
    Dörr, M. , Potvliege, R. M. , Proulx, D. and Shakeshaft, R. (1990) Multiphoton detachment of H- and the applicability of the Keldysh approximation, Phys. Rev. A 42, 4138–50.ADSCrossRefGoogle Scholar
  24. 16.
    Smith, W. W., Tang, C. Y., Quick, C. R., Bryant, H. C., Harris, P. G. , Mohagheghi, A. H. , Donahue, J. B. , Reeder, R. A. , Sharifian, H. , Stewart, J. E. , Toutouchi, H. , Cohen, S., Altman, T. C. , Risolve, D. C. (1991) Spectra from multiphoton electron detachment of H-, J. Opt. Soc. Am. B8, 17–21.ADSGoogle Scholar
  25. 17.
    Schulz, G. J. (1973) Resonances in electron impact on atoms and diatomic molecules, Rev. Mod. Phys. 45, 378–486.ADSCrossRefGoogle Scholar
  26. 18.(a)
    Andrick, D. and Langhans, L. (1978) Measurements of the free-free cross section of electron-Ar scattering, J. Phys. B: At. Mol. Phys. 11, 2355–60.ADSCrossRefGoogle Scholar
  27. 18.(b)
    Langhans, L. (1978) Resonance structure in the free-free cross section of electron-Ar scattering, J. Phys. B: At. Mol. Phys. 11, 2361–66.ADSCrossRefGoogle Scholar
  28. 18(c).
    Andrick, D. (1980) Free-free processes in electron-atom scattering: Experiment, Electronic and Atomic Collisions, N. Oda and K. Takayanagi, eds., North-Holland Publishing Co., 697–704.Google Scholar
  29. 19.(a)
    Andrick, D. and Bader, H. (1984) Resonance structures in the cross section for free-free radiative transitions in e~-He scattering, J. Phys. B: At. Mol. Phys. 17, 4549–55.ADSCrossRefGoogle Scholar
  30. 19.(b)
    Bader, H. (1986) Resonance structures in the cross section for free-free radiative transitions in e~-Ne and e~-Ar scattering, J. Pys. B: At. Mol. Phys. 19, 2177–88.ADSCrossRefGoogle Scholar
  31. 20.
    Brown, L. S. and Kibble, T. W. B. (1964) Interaction of intense laser beams with electrons, Phys. Rev. 133, A705–A719.ADSCrossRefGoogle Scholar
  32. 21.
    Frantz, L. M. (1965) Compton scattering of an intense photon beam, Phys. Rev. 139, B 1326–B 1336.MathSciNetADSCrossRefGoogle Scholar
  33. 22.(a)
    Kibble, T. W. B. (1966) Mutual refraction of electrons and photons, Phys. Rev. 150, 1060–69.ADSCrossRefGoogle Scholar
  34. 22.(b)
    Kibble, T. W. B. (1966) Refraction of electron beams by intense electromagnetic waves, Phys. Rev. Lett. 16, 1054–56.ADSCrossRefGoogle Scholar
  35. 23.
    Bartell, L. S., Thompson, H. B. and Roskos, R. R. (1965) Phys. Rev. Lett. 14, 851. See Ref. 22a pp. 1061 and 1065.ADSCrossRefGoogle Scholar
  36. 24.(a)
    Bucksbaum, P. H. , Bashkansky, M. Mcllrath, T. J. (1987) Scattering of electrons by intense coherent light, Phys. Rev. Lett. 58, 349–52.ADSCrossRefGoogle Scholar
  37. 24.(b)
    Bucksbaum, P. H., Freeman, R. R., Bashkansky, M. and McIlrath, T. J. (1987) Role of the ponderomotive potential in above-threshold ionization, J. Opt. Soc. Am. B, 4, 760–64.ADSGoogle Scholar
  38. 25.
    Bucksbaum, P. H. , Schumacher, D. W. and Bashkansky, M. (1988) Highintensity Kapitza-Dirac effect, Phys. Rev. Lett. 61, 1182–85.ADSCrossRefGoogle Scholar
  39. 26.(a)
    Bucksbaum, P. H. (1988) Above-threshold ionization and quantum mechanics of wiggling electrons, Ref. 3c, pp. 145–55.Google Scholar
  40. 26.(b)
    Freeman, R. R. , Bucksbaum, P. H. and Mcllrath, T. J. (1988) The ponderomotive potential of high intensity light and its role in multiphoton ionization of atoms, IEEE J. Quant. Electr., 24, 1461–69.ADSCrossRefGoogle Scholar
  41. 27.(a)
    Weingartshofer, A., Clarke, E. M., Holmes, J. K. and Jung, C. (1979) Experiments on multiphoton free-free transitions, Phys. Rev. A 19, 2371–76.ADSCrossRefGoogle Scholar
  42. 27(b).
    Weingartshofer, A., Holmes, J. K., Sabbagh, J. and Chin, S. L. (1983) Electron scattering in intense laser fields, J. Phys. B: At. Mol. Phys. 16, 1805–17.ADSCrossRefGoogle Scholar
  43. 28.(a)
    Wallbank, B., Holmes, J. K., Weingartshofer, A. (1987) Experimental differential cross sections for multiphoton free-free transitions, J. Phys. B: AT. Mol. Phys. 20, 6121–38.ADSCrossRefGoogle Scholar
  44. 28.(b)
    Wallbank, B., Connors, V. W., Holmes, J. K., Weingartshofer, A. (1987) Experimental differential cross sections for one-photon free-free transitions. J. Phys. B: At. Mol. Phys. 20, L833–L838.ADSCrossRefGoogle Scholar
  45. 29.
    Krüger, H. (1990) Multiple harmonic generation by laser modulation of Zitterbewegung: the electron a highly nonlinear electromagnetic medium, THE ELECTRON 1990 Workshop, August 1990.Google Scholar
  46. 30.
    Baldis, H. A., Pépin, H. and Grek, B. (1975) Third harmonic generation from laser-produced plasma, Appl. Phys. Lett., 27, 291–92.ADSCrossRefGoogle Scholar
  47. 31.
    Kupersztych, J. (1987) Inverse half-Bremsstrahlung in multiphoton ionization of atoms in intense light beams, Europhys. Lett., 4, 23–28.ADSCrossRefGoogle Scholar
  48. 32.
    Mittleman, M. H. (1988) Extended low-frequency approximation for laser-modified electron scattering: Coulomb effects, Phys. Rev. A 38, 82–92.ADSGoogle Scholar
  49. 33.
    Jung, C. and Krüger, H. (1978) On the accuracy of soft-photon approximations for resonance free-free transitions, Z. Physik A 287, 7–13.ADSGoogle Scholar
  50. 34.
    Jung, C. and Taylor, H. S. (1981) Possibility of experimental separation of resonances and cusps from background in electron scattering, Phys. Rev. A 23, 1115–26.ADSGoogle Scholar
  51. 35.
    Wallbank, B. , Holmes, J. K. , LeBlanc, L. and Weingartshofer, A. (1988) Simultaneous off-shell excitation of He 23S by electron and one or more photons, Z. Phys. D At. Mol. and Clusters, 10, 467–72.ADSCrossRefGoogle Scholar
  52. 36.
    Wallbank, B. , Holmes, J. K. and Weingartshofer, A. (1989) Simultaneous electron-photon excitation of metastable states of rare-gas atoms, J. Phys. B: At. Mol. Opt. Phys. 22, L615–L619.ADSCrossRefGoogle Scholar
  53. 37.
    Wallbank, B., Holmes, J. K. and Weingartshofer, A. (1990) Simultaneous electron-photon excitation of He 22S: an experimental investigation of the effects of laser intensity and polarisation, J. At. Phys. B: At. Mol. Phys. 23, 2997–3005.ADSCrossRefGoogle Scholar
  54. 38.
    Wallbank, B. , Holmes, J. K. and Weingartshofer, A. (1989) Absorption and emission of radiation during electron excitation of the 21S and 21P states of helium, Phys. Rev. A 40, 5461–63.ADSGoogle Scholar
  55. 39.
    Geltman, S. and Maquet, A. (1989) Laser-assisted electron-impact excitation in the soft-photon limit, J. Phys. B: AT. Mol. Opt. Phys. 22, L419–L425.ADSCrossRefGoogle Scholar
  56. 40.
    Trombetta, F. (1991) Exchange effects in laser-assisted elastic electron-hydrogen scattering. To be published.Google Scholar
  57. 41.
    Sundaram, B. and Armstrong, Jr., L. (1990) Modeling strong-field above-threshold ionization, J. Opt. Soc. Am. B7, 414–24.ADSGoogle Scholar
  58. 42.
    Kupersztych, J. While I was presenting a seminar at C.E.N. de Saclay, France, Dr. Kupersztych worked out the numerical problem and after de seminar he handed me a piece of paper with the words “here is a possible explanation of your experiment.” I express my appreciation to Dr. Kupersztych for the splendid suggestion.Google Scholar

Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • A. Weingartshofer
    • 1
  1. 1.Laser-Electron Interactions Laboratory,Department of PhysicsSt. Francis Xavier UniversityAntigonishCanada

Personalised recommendations