School of Engineering, University of Aberdeen, King's College, Fraser Noble Building, Aberdeen AB24 3UE, Scotland, UK.
Appl Spectrosc. 2010 Jun;64(6):687-9. doi: 10.1366/000370210791414416.
A novel Raman spectroscopy setup for the investigation of multiphase fluid mixtures is proposed. The total output of a frequency-doubled Nd:YAG laser is separated into a strong 532 nm beam for generating Raman signals in the vapor phase and the weak residual of the fundamental 1064 nm radiation to be utilized as laser source for Raman scattering in the liquid phase. This approach will provide sufficient signal intensity from the gas (despite low density) for determination of mixture composition and at the same time it facilitates recording high-resolution spectra from the liquid in order to allow studying molecular physics phenomena together with concentration measurements.
提出了一种用于研究多相流体混合物的新型拉曼光谱装置。将倍频 Nd:YAG 激光器的总输出分为强 532nm 光束，用于在气相中产生拉曼信号，以及弱的基 1064nm 辐射残余物，用作液相中拉曼散射的激光源。这种方法将从气体（尽管密度低）中提供足够的信号强度，以确定混合物的组成，同时它还便于从液体中记录高分辨率光谱，以允许同时研究分子物理现象和浓度测量。
