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首页> 外文期刊>Journal of Crystal Growth >High-quality crystal growth of organic nonlinear optical crystal DAST
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High-quality crystal growth of organic nonlinear optical crystal DAST

机译:有机非线性光学晶体DAST的高质量晶体生长

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摘要

Methods for growing high-quality nonlinear optical 4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) crystals have been developed. In conventional growth methods, it was difficult to control the position of spontaneous nucleation and the nucleation period. Difficulty in the nucleation and growth positioning was effectively solved by the slope nucleation method (SNM), and the nucleation period could be controlled by the laser irradiation method (LIM). In this study, we could obtain a high-quality DAST crystal by combining SNM and LIM. This crystal had a full-width at half-maximum (FWHM) of the X-ray diffraction rocking curve of 18.7 arcsec, compared with 50-130 arcsec FWHM for conventional crystals.
机译:已经开发了生长高质量的非线性光学甲苯磺酸4-二甲氨基-N-甲基-4-stilbazolium(DAST)晶体的方法。在常规的生长方法中,难以控制自发成核的位置和成核时间。倾斜成核法(SNM)有效地解决了成核和生长定位的难题,并且可以通过激光照射法(LIM)控制成核时间。在这项研究中,我们可以通过结合SNM和LIM获得高质量的DAST晶体。与常规晶体的50-130 arcsec FWHM相比,该晶体的X射线衍射摇摆曲线的半峰全宽(FWHM)为18.7 arcsec。

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