The middle months of every year for me are occupied with optics testing. I’m well into my second decade of captaining the annual Outdoor Life optics test, but the content that I deliver to readers in ...

In “What is Light?”, we described light as both a wave and a particle under the conditions of the wave-particle duality. In the previous posts, we have mostly modeled light as a ray when discussing ...

Read the full blog post here: https://www.shanghai-optics.com/lesson-11-fringes-and-interferometers. We left off in the previous post using water waves to represent ...