SAN JOSE — During the Bacus Symposium on Photomask Technology next week in Monterey, Calif., Japan's Canon Inc. will present a paper on what the company calls a “vortex mask” for use in sub-micron ...

For thirty years, scientists have theorized that it should be possible to create electromagnetic “focused doughnuts” not topologically dissimilar from the vortex rings that form naturally in air and ...

Vortex rings, a mysterious and fascinating natural phenomenon, display breathtaking structures and behaviors in both air and electromagnetic waves. Imagine an air cannon that can shoot vortex rings, ...