金属表面碱吸附核波包动力学的时间分辨二次谐波研究

Kazuya Watanabe, Y. Matsumoto
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引用次数: 1

摘要

本文综述了近年来在理解碱原子吸附在金属表面的相干表面振动动力学方面所做的努力。时间分辨二次谐波发生器用于表面模式核波包动力学的相干激发和探测。介绍了测量原理和实验细节。主要的焦点是Na-, K-和cs -覆盖的Cu的相干声子动力学的覆盖和激发光子能量依赖(111)。利用超快时域技术和理论模型揭示了相干声子的激发机制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Nuclear Wavepacket Dynamics of Alkali Adsorbates on Metal Surfaces Studied by Time-Resolved Second Harmonic Generation
This paper reviews recent efforts to understand the dynamics of coherent surface vibrations of alkali atoms adsorbed on metal surfaces. Time-resolved second harmonic generation is used for the coherent excitation and detection of the nuclear wavepacket dynamics of the surface modes. The principles of the measurement and the experimental details are described. The main focus is on coverage and excitation photon energy dependences of the coherent phonon dynamics for Na-, K-, and Cs-covered Cu(111). The excitation mechanism of the coherent phonon has been revealed by the ultrafast time-domain technique and theoretical modelings.
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