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Type: Artigo de periódico
Title: Reply To "comment On 'photoionization Of Helium Atoms Irradiated With Intense Vacuum Ultraviolet Free-electron Laser Light. Part I. Experimental Study Of Multiphoton And Single-photon Processes'"
Author: Laarmann T.
De Castro A.R.B.
Gurtler P.
Laasch W.
Schulz J.
Wabnitz H.
Moller T.
Abstract: We do not agree with the conclusion of the Comment by Charalambidis questioning our observation of two-photon ionization of helium by intense radiation with 13 eV photons from a vuv free-electron laser. Two-photon ionization is clearly established by the detection of low-energy photoelectrons at ∼1.7 eV, which agrees very well with the expected energy for a two-photon ionization process. © 2006 The American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.74.037402
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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