Fe3+对KDP晶体生长影响的研究

金属离子对KDP晶体的影响是多方面的.本文采用不同的过饱和度,在不同的Fe3+掺杂浓度的生长溶液中生长KDP晶体,定量地研究了Fe3+对KDP晶体生长的影响.实验发现,无论是在高过饱和度还是在低过饱和度下生长KDP晶体,在一定的浓度范围内,Fe3+的掺入既可以增加生长溶液的稳定性,又可以有效抑制晶体柱面的扩展,而且晶体基本不楔化,同时,对晶体光学性能的影响也不大.

Effects of Fe3+ Ion on the Growth Habit of KDP Crystal

During the process of KDP crystal growth,metal ions greatly influence the growth habit of KDP single crystal.KDP crystal was grown from solutions with different concentration of Fe~(3+)dopant and different supersaturation.By quantitatively studying the effects of Fe~(3+) on the growth habit of KDP crystal,we believe that the concentration of Fe~(3+)dopant has its certain range as KDP crystal were grown from solutions whether at low supersaturation or at high supersaturation.In this range,the dopant of Fe~(3+) can not only improve the stability of the KDP growth solutions,but also hold back the extension of the prismatic face.And the effects of Fe~(3+) on the optical quality of KDP single crystal in this range is little.KDP crystal has no visible defects also.