【摘要】 本文讨论了喇曼分光仪中杂散光测试工作的实施方案及其存在的困难,提出了用改变光吸收液体浓度方便地增减光强进行测试的解决办法,利用普通仪器就能实现光强变化达十三个数量级的测试。文章给出了利用这一减光方法对喇曼分光仪的杂散光进行实际测试的实验装置,绘出了对SD-Ⅱ和SD-IV型全息凹面光栅单色仪以及双单色仪杂散光的实际测试结果。作者还对统一杂散光指标的测试条件提出了建议。更多还原

【Abstract】 This paper is about the experimental measurement of stray light in Raman spectrometers and the related difficulties. It is necessary to attenuate the intensity of incident light for studying the stray light distribution in a Raman spectrometer. By using optical absorptive liquid, the intensity of incident light can be attenuated conveniently while the condition of optical match still maintained. It is simple to measure the light intensity change of the order of 1013 if the method of attenuating light intensity is used. A new experimental scheme for measuring stray light in Raman spectrometers has been suggested. The results of experiments are given for SD-II and SD-IV holographic concave grating monochromators and doublemonochro-mators. Finally, it is suggested that the stray light test conditions should be unified.更多还原