LIFETIMES OF IMAGE-POTENTIAL STATES ON CU(100) AND AG(100) MEASURED BY FEMTOSECOND TIME-RESOLVED TWO-PHOTON PHOTOEMISSION

LIFETIMES OF IMAGE-POTENTIAL STATES ON CU(100) AND AG(100) MEASURED BY FEMTOSECOND TIME-RESOLVED TWO-PHOTON PHOTOEMISSION
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DOI：
10.1103/physrevb.58.13974
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发表时间：
1998-11
期刊：
Physical Review B
影响因子：
3.7
通讯作者：
I. Shumay;U. Höfer;C. Reuß;U. Thomann;W. Wallauer;T. Fauster
I. Shumay;U. Höfer;C. Reuß;U. Thomann;W. Wallauer;T. Fauster
中科院分区：
物理与天体物理2区
文献类型：
--
作者：
I. Shumay;U. Höfer;C. Reuß;U. Thomann;W. Wallauer;T. Fauster

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我们报道了对Cu~100！和Ag~100！利用飞秒紫外光泵浦和红外探测技术，结合双光子光电发射技术，测量了N51、2和3像势态的驰豫动力学。我们发现这些态的寿命都在CU~100！在室温下分别为4066fS、120615 fS和300620 fS。对应的Ag~100！为5565、160610和360615 fS。@S0163-1829~98 06643-0#
We report time-resolved studies of image-potential states on Cu~100! and Ag~100!. Femtosecond ultravioletpump and infrared-probe techniques combined with two-photon photoemission have been used to measure relaxation dynamics of n51, 2, and 3 image-potential states. We found the lifetimes of these states on Cu~100! at room temperature to be 4066, 120615, and 300620 fs, respectively. The corresponding values for Ag~100! are 5565, 160610, and 360615 fs. @S0163-1829~98!06643-0#