Progress in phase-sensitive sum frequency generation spectroscopy

被引:37
作者
Yamaguchi, Shoichi [1 ]
Otosu, Takuhiro [1 ]
机构
[1] Saitama Univ, Grad Sch Sci & Engn, Dept Appl Chem, Sakura Ku, 255 Shimo Okubo, Saitama 3388570, Japan
关键词
ULTRAFAST VIBRATIONAL DYNAMICS; OPTICAL HETERODYNE-DETECTION; AIR/WATER INTERFACES H2O; MOLECULAR-STRUCTURE; ISOTOPIC DILUTION; WATER-MOLECULES; WATER/VAPOR INTERFACE; THEORETICAL-ANALYSIS; BEND VIBRATION; THIN-FILMS;
D O I
10.1039/d1cp01994e
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Sum frequency generation (SFG) spectroscopy is a unique and powerful tool for investigating surfaces and interfaces at the molecular level. Phase-sensitive SFG (PS-SFG) is an upgraded technique that can overcome the inherent drawbacks of conventional SFG. Here we review several methods of PS-SFG developed and reported in 1990-2020. We introduce how and by which group each PS-SFG method was designed and built in terms of interferometer implementation for optical heterodyne detection, with one exception of a recent numerical method that does not rely on interferometry. We also discuss how PS-SFG solved some typical problems for aqueous interfaces that were once left open by conventional SFG. These problems and their solutions are good examples to demonstrate why PS-SFG is essential. In addition, we briefly note a few terminology issues related with PS-SFG to avoid confusion.
引用
收藏
页码:18253 / 18267
页数:16
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