The question that remained from the previous article was: what is the "relative phase" corresponding to the two paths of a ...

One of the physical properties of sound is its wave-like behavior. Diffraction, refraction, and interference are ...

Diffraction gratings are periodic optical structures that disperse incident light into constituent wavelengths by interference. They form a cornerstone of modern optical instrumentation, underpinning ...

Every lens has a sweet spot, the aperture where the image sharpness is at its best. If the aperture becomes larger, lens errors will become visible. When the aperture is closed, lens diffraction will ...