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Digital holographic interferometry based on wavelength and angular multiplexing for measuring the ternary diffusion

机译:基于波长和角度复用的数字全息干涉术,用于测量三元扩散

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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 ((lambda)_(1) velence 532 nm and (lambda)_(2) velence 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.
机译:我们提出了一种新的方法,通过使用基于波长和角度复用技术的数字全息干涉术,动态测量三元扩散。使用具有不同波长(λ_(1)费率532 nm和λ_(2)费率473 nm)的两个激光束进行三元扩散测量,并对其进行调整以在垂直方向上形成相应的干涉条纹。 CCD目标。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分别过滤。最后,将它们重建以获得摩尔浓度。该方法也适用于两相扩散测量。

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