Linewidths in energy-resolved two-photon photoemission spectroscopy

被引：64

作者：

Boger, K

Roth, M

Weinelt, M

Fauster, T

Reinhard, PG

机构：

[1] Univ Erlangen Nurnberg, Lehrstuhl Festkorperphys, D-91058 Erlangen, Germany

[2] Univ Erlangen Nurnberg, Lehrstuhl Theoret Phys 2, D-91058 Erlangen, Germany

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.65.075104

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Energy-resolved two-photon photoemission is modeled in the framework of optical Bloch equations for a three-level system. For pulsed excitation, analytical expressions for the photocurrent have been derived which elucidate numerical solutions. The information that can be extracted from linewidth analysis is demonstrated to depend substantially on the shape of pump and probe pulses. The analysis is applied to image-potential states leading to overall good agreement.

引用

页码：1 / 8

页数：8

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