Experimental demonstration of rogue waves in disordered Luneburg-type photonic networks

摘要

A rogue wave, also called freak wave, is a spontaneous phenomenon observed in ocean surface waves. Freak waves are typically defined as waves with a height (trough to crest) that exceed the average wave altitude by a factor of two or more [1]. Although their extreme nature, the first freak wave ever recorder, occurred in 1995 allowing the confirmation of their existence [2]. Similar, extreme, phenomena were soon estimated that could take place in other areas, such as photonics. In this region a freak wave would be an Electromagnetic wave (signal) that would be significantly fiercer than the rest of the signals measured, contiguous to the oceanic phenomenon. Today in the community two main different approaches exist to explain such phenomena, supporting either the linear or the nonlinear wave dynamics interpretations.