Scientists have long used Gaussian beams to study how light interacts with matter. These beams resemble plane waves and rely ...

light itself—specifically, a laser beam—can block another beam, forming a visible shadow. “Our demonstration of a very counter-intuitive optical effect invites us to reconsider our notion of ...

Scientists have unlocked a new way to control ionization, the process where atoms lose electrons, using specially designed ...

beam. Most of this scattered light is of an unchanged wavelength. A small part, however, has wavelengths different from those of the incident light; its presence is a result of the Raman Effect.