Observing the Interference Patterns of Light Passing through Two and More Slits Using a Charge-coupled Device

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Liu, Yuejun
Hare, Hamish
Thomas Young's double-slit light interference experiment ranks among the few crucial experiments that eventually led to the confirmation of the essence of light as wave, which is one of the most revolutionary developments in the history of physics. In this project, we extend this experiment by using multiple slits and considering the widths of each slit. We conduct precise measurements of the interference patterns using a linear charge-coupled device and then compare the experimental measurements to predictions developed using electromagnetic theory to confirm the validity of treating light as an electromagnetic wave. However, our measurements did not match very well with theoretical model predictions, and we discuss possible reasons for that in this report.
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