CAJ | 학술논문

研究了薄原子蒸气中Y型四能级系统的双缀饰选择反射光谱(DSR),其线型是三条色散曲线的叠加,其中两条反常色散线型对应于双缀饰电磁感应透明(DEIT).与单光子选择反射光谱(SR)相似,DSR也具有明显的Dicke窄化现象.由于暗态超慢原子的贡献和原子跃迁的量子相干效应,从DSR光谱可观察到显著的群速变慢效应.
연구료박원자증기중Y형사능급계통적쌍철식선택반사광보(DSR),기선형시삼조색산곡선적첩가,기중량조반상색산선형대응우쌍철식전자감응투명(DEIT).여단광자선택반사광보(SR)상사,DSR야구유명현적Dicke착화현상.유우암태초만원자적공헌화원자약천적양자상간효응,종DSR광보가관찰도현저적군속변만효응.
Doubly-dressed selective reflection (DSR) spectroscopy of Y-type four-level atoms confined in a thin atomic vapor system is investigated.It is found that DSR lines are superimposed by three dispersion lines with two abnormal lines corresponding to doubly-dressed electromagnetically induced transparency (DEIT).Similar to one-photon selective reflection spectroscopy (SR),Dicke-narrowing also exhibits in DSR lines.Due to the contribution of supper-slow atoms in a dark state and quantum interference of atomic transition,manifest slow down of group velocity of the probe light appear in DSR.