What is the Diffraction Limit? The diffraction limit is a fundamental barrier in optical microscopy that sets the minimum size of features that can be resolved using conventional light microscopes. It ...
When a laser beam is incident on many small objects such as lycopodium powder, the resulting diffraction pattern is similar to the diffraction pattern of a small circular aperture (Airy's disk pattern ...
When Galileo Galilei used a new invention called the telescope to watch the heavens, he revolutionized astronomy. But his estimates of the distances to the stars were thousand of times too short. A ...