Materials scientists can learn a lot about a sample material by shooting lasers at it. With nonlinear optical microscopy—a specialized imaging technique that looks for a change in the color of intense ...

The result of such nonlinear non-reciprocal interactions is the coexistence of run-and-chase dynamics and phase separation. Moreover, since the role of the two species can reverse dynamically, the ...

Scientific illustration of the experiment where two particles in two laser beams are coupled nonreciprocally through light scattered between them. This interaction makes them move along specific ...

Phonons are the quantum units of mechanical vibration. They describe how motion propagates through a solid at the smallest possible scales, in much the same way that electrons describe electric ...

Given appropriate models for vacuum tubes, circuit simulators such as SPICE make analysis based on such nonlinear models a tractable effort. The Langmuir, Leach, and Koren models are discussed for the ...