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基于原子相干效应,研究了在驻波场作用下原子介质的吸收和折射率的周期性调制所产生的周期性微结构特性及其操控。实验结果表明,在驻波场作用下原子介质存在与光子晶体同样的光子带隙特性,而且可通过调节形成驻波的两束光的频率差实现对其光子带隙位置的操控,实现了光子带隙20MHz的频率移动。
Based on the atomic coherence effect, the periodic microstructural properties and manipulations of the periodic medium due to the absorption and refractive index periodic modulation of the atomic medium under the action of a standing wave field are studied. The experimental results show that the existence of the same photonic bandgap characteristic in photonic crystal under the action of standing wave field and the control of photonic band gap position can be achieved by adjusting the frequency difference between the two beams forming standing wave, Band gap 20MHz frequency shift.