改进的迈克尔逊干涉仪测量钠黄光双线波长差  

Experimental Study on the Wavelength Difference of Sodium's Double Spectral Lines Based on Improved Michelson Interferometer

作　　者：陈海良[1] 侯岩雪[1] 高静[1] 张素红[1] Chen Hailiang;Hou Yanxue;Gao Jing;Zhang Suhong(Hebei Key Laboratory of Microstructure Materials Physics,School of Science,Yanshan University,Qinhuangdao,China)

机构地区：[1]河北省微结构材料物理重点实验室,燕山大学理学院,河北秦皇岛

出　　处：《科学技术创新》2024年第13期205-208,共4页Scientific and Technological Innovation

基　　金：河北省高等教育教学改革研究与实践项目(批准号:2019GJJG083);河北省自然科学基金(批准号:F2021203112)资助。

摘　　要：在迈克尔逊干涉仪实验教学及科学研究过程中发现齿轮经常脱扣的现象,这对测量结果产生了严重影响。本文中,我们将传统的齿轮咬合式迈克尔逊干涉仪改进为杠杆式迈克尔逊干涉仪,有助于避免齿轮咬合式迈克尔逊干涉仪中多个齿轮间容易脱扣的现象。利用钠光灯照射杠杆式迈克尔逊干涉仪,观察到了明显的光拍干涉图样,测量了钠黄光双线波长差。钠黄光双线波长差的测量结果为0.5953±0.0054(nm)。本文的研究有助于提升迈克尔逊干涉仪装置的测量稳定性,实现在光谱定标、光学传感、生化检测等领域的长期稳定使用;有助于提升学生发现问题、解决问题的能力;以及有助于学生提升将不同科目知识相结合的能力。During the teaching and research experiment of Michelson interferometer,it is found that the gear often slips away which has serious implications on experimental measurements.In this paper,we improve the traditional gear occluding Michelson interferometer to leverage Michelson interferometer,avoiding the easy tripping between multiple gears in the geared Michelson interferometer.A lever-type Michelson interferometer was irradiated by a sodium light lamp.The obvious light beat interference pattern was observed and the wavelength difference of sodium's double spectral lines was measured.The wavelength difference of sodium's double spectral lines is 0.5953±0.0054(nm).The research in this paper is helpful to improve the measurement stability of Michelson interferometer and realize long-term stable use in spectral calibration,optical sensing,and biochemical detections.It will help improve students'ability to find and solve problems,and help students improve their ability to combine knowledge of different subjects.

关 键 词：迈克尔逊干涉仪 钠黄光 光拍 波长差 

分 类 号：O436.1[机械工程—光学工程]