Related Experiment Video
Updated: Jul 29, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Eliminating spatiotemporal chaos and spiral waves by weak spatial perturbations
Abstract:
The possibility of eliminating spatiotemporal chaos and spiral waves by weak spatial perturbations in a spatially extended dynamical system is demonstrated numerically through the example of a wide-aperture laser. The time-independent weak spatial perturbation can effectively migrate the system from the state of spatiotemporal chaos or spiral waves to that of traveling waves. The threshold and the controllable range of the control parameters are given. By varying the amplitude or the spatial wave vector of the perturbation, drastic changes in the spatiotemporal dynamics are found.
Related Concept Videos
Damped Oscillations
Although friction and other non-conservative...
Forced Oscillations
Propagation of Waves
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
Standing Waves in a Cavity
Linear Approximation in Time Domain
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length, the...
Partial Differential Equations

