Growth of high quality nonlinear optical crystal 4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST)

被引：83

作者：

Adachi, H ^{[1
]}

Takahashi, Y ^{[1
]}

Yabuzaki, J ^{[1
]}

Mori, Y ^{[1
]}

Sasaki, T ^{[1
]}

机构：

[1] Osaka Univ, Dept Elect Engn, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 1999年 / 198卷

基金：

日本学术振兴会;

关键词：

organic nonlinear optical; DAST crystal; crystal growth; X-ray projection topography; Vickers hardness;

D O I：

10.1016/S0022-0248(98)01082-3

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We have grown organic nonlinear optical 4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) crystals by using slow cooling method. X-ray diffraction (XRD) indicates the dependence of the crystallinity of DAST crystal to the growth conditions with the best rocking curve as narrow as 15.8 arcsec full width at half-maximum (FWHM). Although X-ray projection topography indicates the existence of growth striations and planar defects along the direction of a-axis. This crystal is in fact excellent in quality for an organic crystal. Vickers hardness as high as 49 was obtained and is found to increase with the decrease of the FWHM of XRD rocking curve. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：568 / 571

页数：4

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