【摘要】 本文提出谱衍射干涉的计算模拟方法.着重讨论了谱为几何图案时的干涉现象,得到干涉场强正比于物体沿图案路径的线积分.根据实验观察用二次位相函数来近似模拟酒精灯火焰的位相延迟,相应计算了几种特殊谱分布的衍射干涉强度分布,得到与实验相一致的结果.本文还讨论了几种特殊谱衍射干涉的特点,得到了一些结论.更多还原

【Abstract】 The computer simulation for spectrum diffraction interferometer (S-D-I) is proposed. The S-D-I with spectrum of geometric pattern is discussed, and the intensity is directly relative to the line-integral along the track of the pattern. Acording to the experiment, we proposed a parabola model of an alcohol-lamp flame, thus the distribution of interference fringe of the flame can be calculated with a computer, and the result is identical with the experiment. We also discuss the nature of S-D-I with some special spectra, and a few valuable conclusions are obtained.更多还原