论文部分内容阅读
一、前言: 在红外调阶色心激光器的研制中,色心晶体的研制是其中重要的一环。而荧光红外光谱的测试是检验色心晶体的一个重要技术指标。大家知道,色心晶体在一定光源的激励下会产生红外荧光。目前,荧光测试波长介于2-3μm之间。色心晶体在泵光源的激发下产生的红外荧光,其强度极其微弱,一般只有几mw级。这样微弱的红外光,一般的测试装置是无法检测出来的。它必须通过能量转换,低噪声的锁定多级放大,严格的抗干扰、再通过精密电位差计显示记录。我们经过反复的试验,以Ar~+激光器作为泵浦
I. Preface: In the development of infrared color-changing center-point laser, the development of color-center crystal is an important part of it. The fluorescence infrared spectroscopy test is an important indicator of colorimetric crystal. We all know that the color center of the crystal in the excitation of a certain light source will have an infrared fluorescence. At present, the fluorescence test wavelength is between 2-3μm. Color center crystal in the pump light source under the excitation of infrared fluorescence, its intensity is extremely weak, generally only a few mw level. This weak infrared light, the general test device can not be detected. It must pass multi-stage amplification of energy conversion, low noise lock, strict anti-interference, and then display the record through the precision potentiometer. After repeated experiments, we used an Ar ~ + laser as a pump