多色空间相干光经杨氏三孔干涉后的光谱奇异现象

The Spectral Anomalies in Young's Three-Pinhole Experiment Formed by a Spatial Fully Coherent Polychromatic Wave

研究相干光经杨氏三孔实验干涉后,在干涉场中的相位奇点附近所出现的光谱变化现象.结果表明,在相位奇点处附近的某些位置光谱出现"红移",而在另外一些位置光谱出现"蓝移",并且在一些特殊点光谱将分类为等高的两个峰.对两类特殊截面(垂直于三孔平面的截面和平行于三孔平面的截面)的相对平均频率变化进行研究,结果表明,多色空间相干光经杨氏三孔干涉后,其干涉场中的观察点的光谱将出现不同于原光谱的变化.

The phase of some observation points in the interference field is singularly as a spatial fully coherent polychromatic wave passing through Young＇s three-pinhole experiment. The spectral change for the observation points in the neighborhood of the phase singularities is studied. It is found the spectrum is redshifted at some points, blueshifted at others, and is split into two lines elsewhere. The change in relative mean frequency for two specified cross plane （the plane parallel to the pinhole and the plane perpendicular to the pinhole） is investigated as well It is found that the spectrum in the interference field will differ from that of source as a spatial fully coherent polychromatic light interfered by Young＇ s three-pinhole.