杨氏双缝实验中的光谱位移和光谱开关

The Spectral Shift and Spectral Switch in Young′s Double-Slit Experiment

采用不同位置探测部分相干光光谱的方法,研究宽频带部分相干光在杨氏双缝实验中的光谱位移和光谱开关现象.实验结果表明,在干涉光场中,归一化光谱在某些观测点处发生红移,而在另一些观测点处发生蓝移,并且在临界点位置,光谱位移由红移迅速转变为蓝移,即发生了光谱开关现象.此外,研究发现双缝参数和探测距离对杨氏双缝实验中的光谱位移和光谱开关都有影响.

Adopting the technique of different position probes into the spectrum of partially coherent light, study the spectral shift and spectral switch of partially coherent polychromatic light in Young＇s double-slit experiment. The experimental results show that, in the interference field, the normalized spectrum is redshifted at some observation points, is blueshifed at others, and the spectral shift changes rapidly from red shift to blueshifted at the critical points, i. e. , the spectral switch occurs. Furthermore, it is shown that the slit parameter and observation distance effect on the spectral shift and the spectral switch in Young＇s double-slit interference experiment.