Related Experiment Video
Updated: Sep 11, 2025

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Persisted coherent constructive and destructive interference in the nonlinear interaction of light
Abstract:
We report a persisted process of coherent constructive and destructive interference during the nonlinear interaction of two optical beams. The two beams, forming a pair to have synchronized acceleration (namely diametric drive acceleration) driven by their interaction, exhibit energy exchanges arising from the mutual coherence of them. The non-exchanged part and the part coming from the exchange process display a coherent constructive interference for one beam, while destructive interference for the other beam. Such a coherent relation persists along the propagation, underlying the coherence-induced enhancement of diametric drive acceleration.
Related Concept Videos
Interference and Diffraction
The Wave Nature of Light
Interference and Superposition of Waves
Interference occurs in mechanical waves, such as sound waves, waves on a string, and surface water waves. Mechanical waves correspond to the physical displacement of particles. Hence,...
Sound Waves: Interference
Interference: Path Lengths
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
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...

