We call this a diffraction grating and it makes a nice interference pattern. Let me see if I can make a sketch of waves passing through just two openings. Yes. This is just a sketch. But here you ...

Plymouth Grating Laboratory has established the first commercial production system using Scanning Beam Interference Lithography (SBIL) to manufacture gratings and Nanoruled surface structures that can ...

Interference can arise with one source of waves where the waves travel different distances before meeting. The difference in the distance travelled (the path difference) must be a full number of ...