Polarization-Resolved Broad-Bandwidth Sum-Frequency Generation Spectroscopy of Monolayer Relaxation†
Polarization-Resolved Broad-Bandwidth Sum-Frequency Generation Spectroscopy of Monolayer Relaxation†
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DOI：
10.1021/jp067453w
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发表时间：
2007-02
影响因子：
3.7
通讯作者：
M. Smits;M. Sovago;G. W. H. Wurpel;Doseok Kim;Michiel Müller;M. Bonn
中科院分区：
文献类型：
--
作者：
M. Smits;M. Sovago;G. W. H. Wurpel;Doseok Kim;Michiel Müller;M. Bonn
提出了一种新的宽带和频产生（SFG）光谱学的实现方法，该方法允许同时记录SFG光谱与SFG、可见光和红外光束的不同偏振组合。这种方法对于表面性质依赖于时间的研究特别有利，例如动力学研究。该技术是说明了一项研究，模仿肺表面活性物质在呼吸周期的放松。肺表面活性物质脂质的时间依赖性分子顺序通过末端CH 3基团的振动响应来量化。
A novel implementation of broad-bandwidth sum-frequency generation (SFG) spectroscopy is presented, which allows for the simultaneous recording of SFG spectra with different polarization combinations of the SFG, visible, and infrared beams. This method is particularly advantageous for studies in which surface properties are time-dependent, such as kinetic studies. The technique is illustrated by a study that mimics lung surfactant relaxation during the breathing cycle. The time-dependent molecular order of lung surfactant lipids is quantified through the vibrational response of the terminal CH3 group.