Digital holographic interferometry based on wavelength and angular multiplexing for measuring the ternary diffusion.
Digital holographic interferometry based on wavelength and angular multiplexing for measuring the ternary diffusion.
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DOI：
10.1364/ol.37.001211
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发表时间：
2012-04
期刊：
影响因子：
3.6
通讯作者：
Jun Wang;Jianlin Zhao;Chuan Qin;Jianglei Di;A. Rauf;H. Jiang
中科院分区：
文献类型：
--
作者：
Jun Wang;Jianlin Zhao;Chuan Qin;Jianglei Di;A. Rauf;H. Jiang
提出了一种基于波长和角度复用技术的数字全息干涉法动态测量三元扩散的新方法。采用两束不同波长的激光（λ1=532 nm和λ2=473 nm）进行三元扩散测量，并调节它们在CCD靶上形成正交方向的干涉条纹。条纹的正交分裂使得每个波长的空间频率能够在全息图的傅立叶光谱中被单独过滤。最后，它们被重建以获得摩尔浓度。该方法也适用于两相扩散测量。
We present a novel method for dynamical measurement of the ternary diffusion by using digital holographic interferometry based on wavelength and angular multiplexing techniques. Two laser beams with different wavelengths (λ1=532 nm and λ2=473 nm) are used for the ternary diffusion measurement, and they are adjusted to make corresponding interference fringes in orthogonal directions on the CCD target. The orthogonal splitting of the fringes enables the spatial frequencies of each wavelength to be filtered separately in the Fourier spectrum of the hologram. Finally, they are reconstructed to obtain the molar concentration. This method is also suitable for two-phase diffusion measurement.