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Phase-sensitive detection technique for surface nonlinear optics
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DOI：10.1103/PhysRevB.58.R16020.png)
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摘要
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We have developed a simple technique to measure the phase of the weak surface optical second-harmonic response to excitation with femtosecond laser pulses that uses the principle of spectral interference. This approach is necessary for the study of surfaces under (ultrahigh) vacuum conditions, where the conventional method fails due to the dispersion in optical windows. As a demonstration, we have applied the technique to clean Ni(110) in UHV and to a Rh/Co/Cu multilayer in air. We have determined the phase with an accuracy of 5 degrees which is comparable to the conventional method. [S0163-1829(98)50548-6].
Keyword:
SPECTRAL INTERFEROMETRY
2ND-HARMONIC GENERATION
INTERFACE
DYNAMICS
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期刊
IF:
3.7
论文数:
15.4W
被引数:
41.0W
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