Vapor diffusion experiments with different thicknesses of oil barriers are observed by a real-time optical diagnostic system consisting of a Mach–Zehnder interferometer,a microscope and an image processor.Spatiotempo...Vapor diffusion experiments with different thicknesses of oil barriers are observed by a real-time optical diagnostic system consisting of a Mach–Zehnder interferometer,a microscope and an image processor.Spatiotemporal analysis is first employed to extract the absolute concentration evolution and supersaturation during the entire crystallization process.The nucleation and crystal growth processes are then analyzed.It is found that the crystallization process can be easily classified into four stages in our experiments,according to the analysis of interferograms and the absolute concentration curve.This can help us understand the details of crystal growth.The rule of quality change of crystals with increasing thickness of oil barriers is also analyzed,and could be interpreted by the absolute concentration variation and crystallization phase diagram.展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos.11072235 and 10732080the National Basic Research Program of China under Grant No.2007CB936803.
文摘Vapor diffusion experiments with different thicknesses of oil barriers are observed by a real-time optical diagnostic system consisting of a Mach–Zehnder interferometer,a microscope and an image processor.Spatiotemporal analysis is first employed to extract the absolute concentration evolution and supersaturation during the entire crystallization process.The nucleation and crystal growth processes are then analyzed.It is found that the crystallization process can be easily classified into four stages in our experiments,according to the analysis of interferograms and the absolute concentration curve.This can help us understand the details of crystal growth.The rule of quality change of crystals with increasing thickness of oil barriers is also analyzed,and could be interpreted by the absolute concentration variation and crystallization phase diagram.
