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U_{P}, 3U_{P}, 11U_{P}: Above-Threshold Ionization Revisited

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Yang B., Schafer K. J., Walker B., Kulander K. C., Dimauro L. F., Agostini P.

Acta Physica Polonica A

1994

vol. 86

issue 1

41-50

Angular distributions of very high energy photoelectrons from Xe and Kr, excited by a 50 ps, 1054 um laser, are presented. In Xe strong, narrow structures 45° off the polarization axis appear on above-threshold ionization peaks within a limited energy range centered around 9U_{P}, where U_{P} is the intensity-dependent ponderomotive energy. Under the same conditions the effect is much weaker in krypton. These structures are discussed using a very simple classical model as well as sophisticated single active electron calculations and the Keldysh-Faisal-Reiss theory. We conclude these structures are the result of single-electron dynamics involving rescattering of a tunneling component of the continuum wave function.

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1 Acta Physica Polonica A

1 1994

1 Agostini P.

1 Dimauro L. F.

1 Kulander K. C.

1 Schafer K. J.

1 Walker B.

1 Yang B.

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U_{P}, 3U_{P}, 11U_{P}: Above-Threshold Ionization Revisited