Ag/Fe(100)量子阱中的光学子带间跃迁与飞秒动力学
Optical intersubband transitions and femtosecond dynamics in Ag/Fe(100) quantum wells.
作者信息
Ogawa S, Nagano H, Petek H
机构信息
Advanced Research Laboratory, Hitachi Ltd., Hatoyama, Saitama 350-0395, Japan.
出版信息
Phys Rev Lett. 2002 Mar 18;88(11):116801. doi: 10.1103/PhysRevLett.88.116801. Epub 2002 Feb 28.
The optical intersubband transitions and femtosecond dynamics of electrons in quantum well states in Ag/Fe(100) are investigated by interferometric time-resolved two-photon photoemission. The quantum well wave functions and transition probabilities are evaluated from the two-photon photoemission resonance energies and intensities using an extended phase accumulation model. Direct femtosecond pump-probe correlation measurements elucidate the importance of interfaces in confined structures.
通过干涉时间分辨双光子光电子发射研究了Ag/Fe(100)中量子阱态电子的光学子带间跃迁和飞秒动力学。利用扩展相位积累模型，从双光子光电子发射共振能量和强度评估量子阱波函数和跃迁概率。直接的飞秒泵浦-探测关联测量阐明了界面在受限结构中的重要性。
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