Development of high resolution in situ observation system for the crystal growth at high temperature

对砷化镓晶体生长过程进行了原位观察。这个实验是。通过开发原位观察生长细胞和使用红外光的光学系统来完成。结合生长细胞和显微镜，我们可以实时观察到砷化镓晶体的生长和溶解过程。该光学系统还使我们首次能够利用反射红外显微镜观察晶体中的缺陷。这种观察方法适合于目前的研究。由于原位观测系统结构紧凑，能够直观地观察各种晶体的生长过程，因此非常适合在微重力条件下进行实验。

In situ observation of the crystal growth process for GaAs was performed. This experiment was.performed by the development of a in situ observation growth cell and an optical system using infrared light. Combination of the growth cell and the microscopy enabled us to visualize the growth and dissolution process of GaAs crystals in real time.The optical systgem also enabled us to visualize the defects in crystals by meand of reflection infreared microscopy for the first time. This observation method was found to be suitable for the present investiga- tion.Since the in situ observation system is compact and enables to visualize the growth process of varietied of crystals,it was found to be very suitable for the experiment in microgravity.