Two-Photon Cooperative Cascade Superfluorescence

哈特曼教授将继续他的量子光学研究，即辐射场与原子的相互作用。我们将在三能级系统中研究协作级联超荧光。超荧光是一种集体效应，当一组原子被激发发出同相辐射时就会出现。当最初在激发态制备的一组原子发射到中间态，最后级联到更低的终态时，级联超荧光就发生了。辐射的时间演化，其强度和发射方向，将为量子辐射场与量子化原子系统相互作用的方式提供新的见解。

Professor Hartmann will continue his studies of quantum optics, the interaction of radiation fields with atoms. Cooperative cascade superfluorescence will be studied in a three- level system. Superfluorescence is a collective effect occurring when an ensemble of atoms are stimulated to emit radiation in phase. Cascade superfluorescence takes place when a collection of atoms, initially prepared in an excited state, emit to an intermediate state, and finally cascade to a lower-lying final state. The time evolution of the radiation, its intensity and direction of emission, will provide new insight into the way quantized radiation fields interact with quantized atomic systems.