Real-time observation method of crystal growing surface microstructure

A technology for crystal growth and real-time observation, which is applied in measurement devices, material analysis by optical means, instruments, etc., can solve the problems of difficult to achieve real-time observation, complicated observation equipment, poor observation effect, etc., and achieves good real-time observation effect and image. The effect of strong intuition and high degree of equipment automation

Inactive Publication Date: 2009-10-21
QINGDAO UNIV
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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.

Method used

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  • Real-time observation method of crystal growing surface microstructure
  • Real-time observation method of crystal growing surface microstructure

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Experimental program
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Effect test

Embodiment

[0012] The basic idea of ​​this embodiment is to introduce a Fizeau interferometer in the interference light path, replace one of the two reference plane mirrors in the Fizeau interferometer with the surface of the crystal 14 being grown, and let the reference plane mirror 9 and the growth crystal 14 surface reflect The laser light interferes, so that the interference fringes contain information on the surface of the growing crystal 14, and then use the phase-shifting interference technology to extract the structure information of the growing crystal surface, and then calculate and analyze the contour map and three-dimensional perspective view of the growing crystal 14 surface through computer software The system device for realizing real-time observation in this embodiment includes two parts: a phase-shifting digital wavefront interferometer and a crystal growth device; wherein the phase-shifting digital wavefront interferometer is a Fizeau type horizontal phase-shifting digita...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84
Inventor 钟德高滕冰
Owner QINGDAO UNIV
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