生长基元在晶体生长过程中是一个十分重要的问题，由于这个问题涉及到母液相结构而变得比较复杂。至今人们对母液相的结构仍缺乏认识并且也缺少有力的实验手段。因此，大大地影响了对晶体生长过程的透彻了解。为了了解晶体生长过程中液固相转变时结构变化的行为，我们根据硼酸盐中Ｂ－Ｏ键的振动在红外有明显的吸收峰这一特征，采用红外光谱和红外激光拉曼光谱来进行研究。本文主要报导我们自行设计和建立的一套高温晶体生长实时分子振动光谱测量方法与装置，以及应用这套装置对ＢＢＯ和ＬＢＯ晶体生长过程进行的初步研究。这套实时测量系统是建立在已有的进口激光拉曼光谱仪和付里叶变换红外光谱显微镜联用光谱仪的基础上，设计与安装了一套透射式实时光谱探测系统，主要包括探测头和微机控制的高温炉。具体过程是用一套光纤耦合器将泵浦光从光谱仪中耦合进光纤，然后经一光纤耦合聚焦系统将泵浦光经高温炉的窗口聚焦在样品上，样品辐射出的信号光从窗口经反射镜进入由球面反射镜构成的高精度成像系统，将样品的像成像于光栏上。这样只有与光栏小孔共焦的样品区域内所发出的红外辐射才能通过，再经光纤耦合器、光纤、光纤耦合器送入光谱仪进行光谱测量。我们设计的样品架是由一个铂丝环做成的。首先将? Growth primitives are a very important issue in crystal growth and become more complicated as the problem involves the mother liquor phase structure. Until now, people still lack of understanding of the structure of mother liquor and lack of powerful experimental methods. As a result, a thorough understanding of the crystal growth process has been greatly affected. In order to understand the behavior of structure changes during the liquid-solid phase transformation during crystal growth, we used infrared spectroscopy and infrared laser Raman spectroscopy to characterize the apparent absorption peak of B-O bond in borate in infrared. the study. This article mainly reports on a set of self-designed and established real-time molecular vibration spectrometry method and device for high-temperature crystal growth, as well as the preliminary study on the growth of BBO and LBO crystal using this device. The real-time measurement system is based on the existing imported laser Raman spectroscopy and Fourier transform infrared spectroscopy microscope spectrometer, based on the design and installation of a set of real-time transmission spectroscopy detection system, including the probe and the microcomputer Controlled high temperature furnace. The specific process is to use a set of fiber coupler pump light from the spectrometer coupled into the optical fiber, and then through a fiber coupling focusing system to pump light through the window of the high temperature furnace focused on the sample, the sample signal radiation from the window by The mirror enters a high-precision imaging system consisting of a spherical mirror that images the sample on a light bar. In this way, only the infrared radiation emitted in the sample area confocal with the aperture of the light bar can pass through and then be sent to the spectrometer for measuring the spectrum via a fiber coupler, an optical fiber and a fiber coupler. The sample holder we designed is made of a platinum wire loop. First?