Title of article
Theory of dynamics of electron wave packets in time-resolved two-photon photoemission via image states
Author/Authors
Takamasa Sakai، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
6
From page
57
To page
62
Abstract
Time-resolved two-photon photoemission (TR2PPE) from the Cu(100) surface is investigated by the Keldysh Green
function method in order to analyze ultrafast dynamics of an electron wave packet in the image states of the surface. By
numerical analysis, the quantum beats in the TR2PPE spectrum due to interference among the image states are reproduced,
and the motion of the electron wave packet in front of the surface is demonstrated. It is discussed on the basis of the obtained
results as to how the motion of the electron wave packet is evaluated from the TR2PPE spectrum. # 2001 Elsevier Science
B.V. All rights reserved.
Keywords
Quantum beat , Keldysh Green function , Time-resolved two-photon photoemission spectroscopy , Copper surface , Ultrafast electron dynamics
Journal title
Applied Surface Science
Serial Year
2001
Journal title
Applied Surface Science
Record number
996684
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