Metamaterials Could Have Unique Chaotic Motion

摘要

has predicted that man-made structures called metamaterials could produce instabilities in electron beams. The effect could provide a means for generating and amplifying optical signals. Metamaterials are often called left-handed media (LHM) because they break the right-hand rule of electromagnetism. This means that the envelope of a wave - created by changes in wave height - in LHM can move in the opposite direction to the wave's overall motion. This is expected to produce phenomena similar to backward wave oscillators, which are common sources of microwave radiation.