About this Simulation

This simulation models how optical systems resolve two closely-spaced light sources using wave superposition principles. Learners can adjust diffraction patterns, observe intensity distributions, and explore the Rayleigh criterion—the fundamental limit determining whether two point sources appear distinct or merge into one.

Learning objectives: Understand how diffraction affects optical resolution and identify when two sources meet the Rayleigh criterion | Visualize the relationship between wavelength, aperture size, and resolving power | Apply wave superposition concepts to explain real-world imaging limitations