Inclined, Curved and Expanded Interference Pattern of Double Slit Experiments

⟨hal-03339884⟩Author: Hui Peng. Title: Inclined, Curved and Expanded Interference Pattern of Double Slit Experiments. 2021.The video shows, the first time, how the dynamic characteristics of the interference patterns continuously vary when the grating is rotating continuously. We start from the original orientation of the grating, namely, the laser beam is perpendicular to the plane of the grating and the angle between the multi slits on the grating and the vertical direction is 45 degrees (may be any angle between 00 and 900). The original interference pattern is shown. Then continuously rotating the grating around the vertical direction counterclockwise. The interference patterns change gradually in three aspects continuously and simultaneously: First aspect, the whole pattern is inclined towards the horizontal axis.Second aspect, the distances between fringes are expanded.Third aspect, the patterns curve downwards, which supports Left-hand ruleThen go back to the original orientation and rotate the grating clockwise. The interference patterns still vary in three aspects: First and Second aspects are the same. Namely, the whole pattern is inclined towards the horizontal axis, and the distances between fringes are expanded.Third aspect, the patterns curve, but to opposite direction, namely, upward, which supports the right-hand rule.The first and second aspects have been explained mathematically in the article below. However, these phenomena are interesting and challenge to interpret consistently. For predicting the directions of the patterns curve toward, please see and article: ⟨hal-03338628⟩Author: Hui Peng. Title: Curved, Expanded and Inclined Interference Patterns ---Dynamic Double Slit/Cross-Double Slit Experiments. 2021