In this video I talk about diffraction gratings and how they work. I show you how you can use them to make diffraction ...

It is widely assumed that diffraction places a limit on the smallest features that can be produced by light-based fabrication techniques, such as photolithography. This limit is typically about ...

DURING the last visit of the late Dr. E. W. Washburn to Toronto in the latter part of 1933, in an address on the properties of heavy water, he announced that water vapour, when condensed at very low ...