摘要
根据干涉叠加原理研究非单色光的干涉现象,对不同谱线宽度的光波干涉及相干长度进行对比分析,研究了双中心波长准单色光干涉光强的变化规律,以双黄汞灯为光源,按照理论分析的结果进行未知波长测量实验,得出了一定条件下测量未知波长的实验方法,实验结果与理论分析相符.
The optical interference and coherent length of light source with different spectral width are compared and analyzed. The interference fringes of double wave length quasi-monochromatic light are studied using the double yellow line of mercury lamp as light source. Based on the theoretical result, an experiment to measure unknown wave length is carried out, the experimental results are in accordance with the theoretical analysis.
出处
《物理实验》
2007年第11期35-37,40,共4页
Physics Experimentation
基金
广东海洋大学引进人才启动基金资助项目(E05102/051202)
关键词
波长
干涉
相干长度
准单色光
谱线宽度
wave length
interference
coherent length
quasi-monochromatic light
width of spectral line
