Divitt Shawn, Frimmer Martin, Visser Taco D, Novotny Lukas
Opt Lett. 2016 Jul 1;41(13):3094-7. doi: 10.1364/OL.41.003094.
The interference pattern observed in Young's double-slit experiment is intimately related to the statistical correlations of the waves emitted by the slits. As the waves in the slits become more correlated, the visibility of the interference pattern increases. Here, we experimentally modulate the statistical correlations between the optical fields emitted by a pair of slits in a metal film. The interaction between the slits is mediated by surface plasmon polaritons and can be tuned by the slit separation, which allows us to either increase or decrease the spatial coherence of the emerging fields relative to that of the incoming fields.
在杨氏双缝实验中观察到的干涉图样与狭缝发出的波的统计相关性密切相关。随着狭缝中的波相关性增强，干涉图样的可见度增加。在此，我们通过实验调节金属薄膜中一对狭缝发出的光场之间的统计相关性。狭缝之间的相互作用由表面等离激元极化激元介导，并且可以通过狭缝间距进行调节，这使我们能够相对于入射场增加或减小出射场的空间相干性。
