非旋波作用对弗仑克尔激子超辐射的影响

The Effect of Antirotating Wave Coupling onSuperradiance of Frenkel Excitons

研究表明 ,在弗仑克尔激子的超辐射理论中出现在辐射强度和相干度中的无规颤动是由非旋波作用所引起的。另外 ,在不考虑非旋波作用项后 ,超辐射光场是一阶完全相干的 ,与初始时激子的状态无关。二阶相干度与初始时激子态的二阶相干度相同 ,不出现更复杂多样的情况。

It is shown that the irregular quivers in the light intensity of exciton superfluorescence is caused by the antirotating-wave coupling. Besides, if the antirotating-wave is removed, the first order degree of coherence of radiation will be exactly equal to one, independent of the initial condition of the excitons, and the second order degree of coherence will be the same as the initial exciton state.