摘要
分析了单缝衍射光强分布实验的误差来源,提出在光电流与光强成线性关系的前提下,产生误差的主要原因是环境本底及主极大杂散光的存在.并得出在光电探头的线性区域内,适当增大主极大光强的强度和增大衍射条纹的宽度是提高实验精度的有效方法.
The error origin of the light intensity distribution of single slit diffraction is analyzed in this paper, which points out that when photocurrent is direct ratio of the light intensity, the error is caused by environment background and stray light of primary maximum. The paper also educes that in the direct ratio region of photodetectors augmenting the light intensity of primary maximum and augmenting breadth of the list diffraction are the effective ways to decrease errors.
出处
《常熟理工学院学报》
2010年第4期59-61,70,共4页
Journal of Changshu Institute of Technology
基金
中山大学2007实验室开放基金资助项目(KF200740)
关键词
单缝衍射
环境本底
主极大杂散光
single slit diffraction
environment background
stray light of primary maximum
