Dynamics Of Light And Matter

摘要

The interaction between light and matter at a fundamental level has been studied intensively in the past two decades using cavity quantum electrodynamics, in which light confined in a reflective microcavity interacts with atoms and other particles. Something that has not been widely studied, however, is how the coupling of light and matter evolves with time. Giinter et al. have now developed a time- resolved measurement set-up in which strong light-matter coupling can be switched on in a semiconductor quantum-well structure as rapidly as within one cycle of light.