Interference: Wave Superposition

This lecture covers the interference phenomenon, which occurs when waves from nearby sources superimpose. It explains how interference arises from the superposition of waves, leading to the formation of interference fringes. The lecture delves into the Young interference experiment with photons, highlighting the challenges of achieving coherence between sources. It also discusses temporal and spatial coherence, coherence time, and coherence length, emphasizing the correlation of phase in light waves. The concept of interference from two coherent sources is explored, detailing constructive and destructive interference patterns. Additionally, the lecture addresses the interference of waves emitted by neighboring sources and the conditions required for interference to occur.