Real-time observation method of crystal growing surface microstructure

Abstract

The invention relates to the technical field of real-time quantitative test and analysis of a surface microstructure in the process of crystal growth by a solution method in the 3-D direction and belongs to a method of real-time observation of water-soluble crystal and organic crystal growing surface microstructures by adopting a laser digital phase-shifting interferometer system device. The invention is characterized in that a Fizeau interferometer is introduced into an interference light path; one of two reference plane mirrors in the Fizeau interferometer is replaced by a growing crystal surface so as to ensure laser reflected by the reference plane mirrors and the growing crystal surface to interfere so as to lead interference fringes to contain information of the crystal growing surface; phase shifting interferometry is applied to extract the information of the crystal growing surface structure and then contour maps and three dimensional perspective images of the crystal growing surface are obtained by computation and analysis of computer software to realize real-time observation. The method has simple and reliable working principle, high degree of automation of used equipment, good real-time observation effect and strong image intuition, which particularly can convert the process of crystal growth to display information in omni direction.

Description

Technical field: [0001] The invention relates to the technical field of real-time quantitative measurement and analysis of the surface microstructure in the three-dimensional direction during the crystal growth process of the solution method, and belongs to a method for real-time observation of the surface microstructure of water-soluble crystals and organic crystals by using a laser digital phase-shifting interference system device. Under various growth conditions, the characteristic morphology of the crystal growth surface is analyzed to analyze the crystal growth kinetics process and the formation mechanism of microscopic crystal defects. Background technique: [0002] The crystal growth surface structure determines the growth mechanism. Whether the crystal growth surface structure is stable is related to the integrity of the single crystal growth, and directly determines the final crystal quality. Therefore, real-time observation and analysis of the crystal growth surface...

AI Technical Summary

Problems solved by technology

However, the existing technology still has outstanding shortcomings such as complex observation equipment, poor observation effect, and difficulty in real-time observation.

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